Concatenate Two Json Objects Node Js

js way, modified, and re-exported. ), a relative url (the portion of the URL after graph. js and see how Edge. The only tools I can find online require you to select each file one at a time (or are super pricey for a one-time use). js or ask your own Combine or merge JSON on node. Please note that a JSON-encoded object has several important differences from the object. jq can be used for more than just reading values from a JSON object. Overwriting objects with JSON. Grouping Data. indd 8 10/26/09 9:55 PM Chapter 1. I have been looking for a way to combine these two objects into one object. When I was a beginner, I used to create JSON data by concatenation, which later I found was the worst method. Before I drop into PL/pgSQL, I wanted to ask the question here. JSON objects are written in key/value pairs. Use List, AddRange, Array. 1 Convert a Staff object to from JSON. You can connect to MapR Database JSON from middleware components, and add, update, and query documents in a MapR Database JSON table. The final step is to just construct a PS object and convert it. Extend a JavaScript object with the key/value pairs of another. In this example, we will use NodeJS. For example, let’s say we want to define a simple schema for an address made up of a number, street name and. Combine two matrix-like R objects by columns (cbind2) or rows (rbind2). In this post we will show you Combining Angular 6 Arrays, hear for Angular 6 – Reading data from Nested JSON we will give you demo and example for implement. json file if it exists, if one doesn't and it finds a *. Python supports JSON through a built-in package called json. In order to keep track of all our endpoints, we use a rich notation called JSON Hyper-Schema. JSON Schema is a standard (currently in draft) which provides a coherent schema by which to validate a JSON "item" against. Each of these platforms are great in some areas though most of them are. otherwise it is encoded as a JSON object with one name/value pair whose name is the type's name and whose value is the recursively encoded value. Reading POST data in Node. 2) Set up options: parse numbers, transpose your data, or output an object instead of an array. Single object encoding specification. Often times, you will want to break apart the data by a categorical variable and look at statistics or details for each group. Json (in Newtonsoft. JSON Web Token (JWT, sometimes pronounced / dʒ ɒ t /) is an Internet standard for creating JSON-based access tokens that assert some number of claims. New here? Start with our free trials. Deserializing from JSON with LINQ. For this article, we are concatenating three JavaScript files. JSON Web Encryption (JWE) represents encrypted content using JSON- based data structures. json starts to show signs of life (explanatory comments added):. An example of this is in the foIn method in mout. That thread seemed to die out. You can reduce with any sort of operation that combines two values. There are two main concerns regarding application configuration:. Both email and url are optional either way. function mergeJSON(source1,source2){ /* * Properties from the Souce1 object will be copied to Source2 Object. We'll also assume a bit of familiarity with Node. What are JSON Web Tokens (JWT)? JSON Web Tokens (JWT) is a standard that defines a compact and self-contained way for securely transmitting information between parties as a JSON object. js EventEmitters and. Most commonly this is between client-side JavaScript running in a web browser, and a server-side script running on the web server. Rather than nesting one object inside another, create a separate object in one of those arrays and link the two together - even if you're sure it's a 1-to-1 relationship for both objects. com), optional headers array (corresponding to HTTP headers) and an optional body (for POST and PUT requests). While building a rich JavaScript application, you may get in a situation where you need to make multiple ajax requests, and it doesn’t make sense to work with the results until after all of them have returned. How to merge or join two arrays in Javascript? JavaScript. Here is a simple example program to merging two JSON objects. The last previous post was an intro to MongoDB, so read that first. js) to pass a JSON data object from the server. Extend a JavaScript object with the key/value pairs of another. js middleware "express", we can create functionality for viewing, adding or deleting JSON data. What is the most expedient means of merging two identical JSON arrays on in a NodeJS / Express app? I have three web services two data api services and one "wrapper" service. js, there are two main different tasks: The task of implementing the streams. Sometimes you may have the need to automatically create an object of your own class from the JSON data. com | Latest informal quiz & solutions at programming language problems and solutions. In this post we will show you Combining Angular 6 Arrays, hear for Angular 6 – Reading data from Nested JSON we will give you demo and example for implement. The Concise Binary Object Representation (CBOR) is a data format whose design goals include the possibility of extremely small code size, fairly small message size, and extensibility without the need for version negotiation. All of my business logic exists in the db and I get back complex Json objects in node. 6 Methods to Manipulate String Objects. How To Create Multi-Object JSON Arrays in SQL Server. js packages # TypeScript 3. It is commonly used by web APIs to return data. Join a community of over 2. JSON tools you don’t want to miss Developers can choose from many great free and online tools for JSON formatting, validating, editing, and converting to other formats. The method: initConfig belongs to the grunt object. json-concat A Node. js OCTOBER 31, 2019 by Bhaveshm23 In my last article, I covered the introduction to Node. In this tutorial, I'll walk you through the theory, and teach you how to use object stream transformables, just like Gulp does. We are ready to send it over the wire or put into a plain data store. Benchmarks that compare at least two implementations supporting draft-06+ may be listed here. Before I drop into PL/pgSQL, I wanted to ask the question here. You can get that from NuGet. json files, you can customize the questions asked and fields created during the init process so all the package. Because Oracle supports cursor expressions, you can nest SQL queries in such a way that they mimic the JSON object being created! Here's the SQL query we'll use to get the JSON:. stringify(myObj, null, 2); Same applies if you are trying to write the json object in a file with pretty printed format. {"bugs":[{"bugid":670720,"firstseen":"2018-11-09T02:09:25. Assuming response always has a data field and you want everything in the data field to be concatenated, you can use Object. js all use JSON. Converting JSON to object and object to JSON can be done using the JSON object and its parse and stringify methods. I could do this with an extra SELECT row_to_json (as in my first example), but this way it creates a extra object, which I don't want because this object is already created by array_agg which is wrapped around it. If you pass a JSON object as an argument, then it prints a formatted JSON object. The type validation keyword defines the first constraint on our JSON data and in this case it has to be a JSON Object. You can browse for and follow blogs, read recent entries, see what others are viewing or recommending, and request your own blog. Normally, I'd just upvote that and move on…. How to combine two JSON in MULE? javascript,json,node. js gets a client, it reads serial string and generates a serialEvent, sending along the JSON object read from the Arduino Web client (also written in JavaScript) opens a websocket to node. How To Create Multi-Object JSON Arrays in SQL Server. js, or in any JavaScript engine that supports ECMAScript 3 (or newer). keys to get all keys from the first object, and you can loop over these keys to see the difference in values in the two objects. Extends the destination object dst by copying own enumerable properties from the src object(s) to dst. stringify() is one of the most commonly used functions when building web services. js Tutorial:. The second line correctly encodes the object as JSON string (using stringify): node -e 'console. The exact property name will be searched for first and if no matching property is found then the StringComparison will be used to match a property. There are various ways to authenticate the user. Tutorial to Native Node. This is a two part blog post. Today, We want to share with you Angular 6 JSON Array Merge into one array. exports or exports is a special object which is included in every JS file in the Node. js as a plain, old module, in Connect and Express as a middleware and in your terminal as an executable. A JSON Array is simply a JavaScript Array where each element is an Object, and each Object have the same keys. In Azure Functions 2. Starting with this version, Express supports Node. json starts to show signs of life (explanatory comments added):. As the other answers noted, the fundamental problem with the OP's functionality is that they've got a single string with the text of two JSON elements in it, and they want JSON_MERGE to interpret it as those two. Using Buffers in Node. js is running for two different phases, it would be wise in this case to look at the npm_lifecycle_event environment variable. js OCTOBER 31, 2019 by Bhaveshm23 In my last article, I covered the introduction to Node. Object fields that do not correspond to any output column name are ignored, and output. Dynamic, data-driven web applications nowadays often use JavaScript Object Notation - JSON - to communicate with a back-end database or web service of some sort. Normally, I’d just upvote that and move on…. As its name suggests, JSON is derived from the JavaScript programming language, but it's available for use by many languages including Python, Ruby, PHP, and Java. * Note: This method will return a new merged object, Source1 and Source2 original values will not be replaced. Python supports JSON through a built-in package called json. How can I combine multiple list service responses into one json object? Edit Subject I am trying to to invoke two or more different rest services and combine the response objects into one object and display that combined object into a dynamic list. Gson is a Java library that can be used to convert Java Objects into their JSON representation. I did also search on google and try to how to use foreach in Node JS. Before you start with encoding and decoding JSON using Python, you need to install any of the JSON modules available. How To Create Multi-Object JSON Arrays in SQL Server. The return object for this example will be an anonymous object. Thanks in advance. How to combine two JSON in MULE? javascript,json,node. Concatenate or merge two json objects in SQL Server at AllInOneScript. It is based on a subset of the JavaScript Programming Language Standard ECMA-262 3rd Edition - December 1999. js client and how it works together with Couchbase Server, and especially new features in versions 4. This chapter covers how to encode and decode JSON objects using Python programming language. Browse other questions tagged javascript json node. Think about it this way: the JSON file I created in my last post contains the game’s definition, but we need to create an instance of it just for you and your party (think classes and objects, same deal). Like say a list of Strings, which we know under the covers a String is a List of Char [Char] what if the list is empty ? Do we have to check for that possibility and handle that? That doesn’t seem very helpful. It is commonly used by web APIs to return data. Use it in Node. js makes it simple to ensure that the information can be easily accessed by the users. we only fill it if the resulting JSON object contains any items at all. Serializing to JSON with LINQ. It comprises a compact and URL-safe JSON object, which is cryptographically signed to verify its authenticity, and which can also be encrypted if the payload contains sensitive information. I found a two year old thread where somebody requested a feature for exactly this. js and see how Edge. Environment. It provides transparent defaults and built-in typing to make errors easier to find and debug. Also, it might be useful if you want to concatenate two result sets from two queries formatted as JSON. param( obj ). JSON tools you don’t want to miss Developers can choose from many great free and online tools for JSON formatting, validating, editing, and converting to other formats. The most visible new feature in this release is the ability to quickly merge JSON using the Merge method added to JObject and JArray. In this post we are going to focus on JWE. Modifying JSON. Each of your requests has a method (corresponding to HTTP method GET/PUT/POST/DELETE etc. The return value of object_pairs_hook will be used instead of the dict. GitHub Gist: instantly share code, notes, and snippets. NET to de-serialize the incoming json to strongly typed object. I think that each of us has at least once in their lives created a bunch of files with JSON data, but they were just one object propagated without unique fields. keys to get all keys from the first object, and you can loop over these keys to see the difference in values in the two objects. Convert JSON to Java Object. How do I take one object array and combine two data points into one? Tag: json,underscore. I'm trying to combine multiple JSON objects into one big object in Postgres. The JSON object, available in all modern browsers, has two very useful methods to deal with JSON-formatted content: parse and stringify. To make a read-only copy of a DataTable (optionally filtered to show specific values, rows, or columns), create a DataView. js gets a client, it reads serial string and generates a serialEvent, sending along the JSON object read from the Arduino Web client (also written in JavaScript) opens a websocket to node. assign(), it is important that the first argument is an empty object. It produces the following result − Creating Array Objects. js Best Practices - Summary and curation of the top-ranked content on Node. Paste some JSON in each of the text fields. There are various ways to authenticate the user. Description. Steps to Concatenate two Datasets To append or concatenate two Datasets Use Dataset. JSON 3 exposes two functions: stringify() for serializing a JavaScript value to JSON, and parse() for producing a JavaScript value from a JSON source string. Get it now! This book covers the basics of Node. txt) or read online for free. JSON is an open standard format that consists of key-value pairs. What is the most expedient means of merging two identical JSON arrays on in a NodeJS / Express app? I have three web services two data api services and one "wrapper" service. You can read more about in Intro to Express. js process that runs your code by adding the environment variable or App Setting languageWorkers:node:arguments =. A JWT is represented as a sequence of base64url encoded. The 8-byte little-endian CRC-64-AVRO fingerprint of the object's schema; The Avro object encoded using Avro's binary encoding. I don't think it's possible to absolutely reason about such things. In this post, we will learn about How to combine two JSON Objects in Angular 6 with an example. JSON objects are written in key/value pairs. sp \fBNOTE:\fP. An array of JSON objects merging here. The properties (key-value pairs) on an object are defined using the properties keyword. The return object for this example will be an anonymous object. This also makes a drawing easy to clone. Analyze your JSON string as you type with an online Javascript parser, featuring tree view and syntax highlighting. As mentioned in the first article, console is a global object consisting of functions like log, error, debug, warn which allow us to write something to the process console appended by a newline character. shifter will read a build. Javascript Cheat Sheet for Titanium Developers - Free download as PDF File (. com | Latest informal quiz & solutions at programming language problems and solutions. js, Unit 10: Logging Node applications with Winston and Log4js Learn about Node. js,sequelize. A note of caution: If you are wondering why json_encode() encodes your PHP array as a JSON object instead of a JSON array, you might want to double check your array keys because json_encode() assumes that you array is an object if your keys are not sequential. Image Processing — OpenCV and Node. JSON Web Tokens are used in the industry more and more. js - What are package. jsonp() and res. assign is the most straightforward approach. js Guide: The Comprehensive Book on Express. Create, write and read in/from JSON file using java: Here, we are going to create two java programs, 1) program that will write content in JSON file and 2) program that will read content from the JSON file. js and npm) to deploy functions. Additions are displayed in green. In Such cases, what you need is pretty printing the JSON object. The properties (key-value pairs) on an object are defined using the properties keyword. The best solution in this case is to use Lodash and its merge() method, which will perform a deeper merge, recursively merging object properties and arrays. By default, a JSON object is parsed into a python dict. How can I set package. Using Buffers in Node. In case a jQuery object is passed, it should contain input elements with name/value properties. when 20 October, 2011. In Such cases, what you need is pretty printing the JSON object. The \/library\/ provides the function \"encodePretty\". js series on webapplog. JSON represents objects in structured text format and data stored in key value pairs. This allows you to know loop through the JavaScript objects and find what you need. You've got two sentence fragments, "There needs to" and "URLs for each fight" with a confusing mishmosh. js module for concatenating JSON files and objects. Objects and Arrays. Installing Node. json up to work on both Windows and Unix? I'm assuming that Travis-CI runs Unix, so, should I link the build to that, it will blow up with the Windows version. By leveraging the Node. In this page you will learn about structures of JSON. Now let's try to open Json Object using IE or any other javaScript enabled browser. It can also be a single object of name/value pairs or a single object with a single property with an array of name/value pairs. Tables[0]= //table records ds. The examples in the previous posting showed how JSON_TABLE iterated over a single array and returned JSON values as column values. Postgres and Json are great. stringify() is one of the most commonly used functions when building web services. The CoffeeScript literals for objects and arrays look very similar to their JavaScript cousins. I'm trying to combine multiple JSON objects into one big object in Postgres. Now let's try to open Json Object using IE or any other javaScript enabled browser. Combine 2 JSON string/objects - posted in General Questions/Discussion: Hi, Does anyone know if it is possible to combine 2 JSONs into 1 in Corona?. In order to. You can find a number of examples for using Node. It is widely used as a data storage and communication format on the Web, even in languages other than JavaScript. 2 Object Internal Methods and Internal Slots; 6. Developer faces many issues when they begin working with JSON and JavaScript in the beginning stage and this kind of solution is very handy. have their Symbol. but a few properties in the incoming json are highly dynamic, it will be some json object with different number and type of properties. The only safe way to. deepEqual on the other hand will immediately see that the two options are the same and finish 8000 times more quickly. This also makes a drawing easy to clone. js, you can use one of the node packages, that will make it for you very easy. Bug tracker Roadmap (vote for features) About Docs Service status. Here is the javascript code snippet that will do the trick: JSON. Generate Plain Old Java Objects, XML from JSON or even JSON-Schema. It is easy for machines to parse and generate. For this final example, we will combine the first two examples to show how objects can be nested inside of other objects or arrays. For that, the input JSON has to be decoded before merging. Represents a JSON object. js Express, Easy Manager Method. But JSON can also be used to express an entire JSON object by using the same notion as an array element. properties file it will generate the build. Lodash’s modular methods are great for: Iterating arrays, objects, & strings; Manipulating & testing values; Creating composite functions. js Lambda containers. The \/command-line tool\/ reads JSON from stdin and writes prettified JSON to stdout. JSON Web Token (JWT) is a compact, URL-safe means of representing claims to be transferred between two parties. Best How To : That depends on how you are getting the payload from different source. js Email Node. Serializing to JSON with LINQ. you will also learn different forms of storing data in JSON. It was a Thursday. In this page, you will learn about PHP json_encode() function with example. I am trying to produce a specific json object output from rows of a single column of jsonb and I'm stuck. But object A should be copied into all B objects for extending them. js community. Concretely I have a json object created by a base class, and I need derived classes to add specific information to it. With SQL Server 2016, you can store JSON objects in your rows. Many third party controls like Kendo UI grid supply data from client size to server side in JSON string format so it is necessary to cast our JSON string to the appropriate object to access data. Sonoff switch complete hack without firmware upgrade. JSON, short for JavaScript Object Notation, is usually pronounced like the name "Jason. # https://api. json up to work on both Windows and Unix? I'm assuming that Travis-CI runs Unix, so, should I link the build to that, it will blow up with the Windows version. It tells me that comments. json objects using PowerShell. filter(), map() and forEach() all call a callback with every value of the array. You can browse for and follow blogs, read recent entries, see what others are viewing or recommending, and request your own blog. 1BestCsharp blog 6,503,278 views. SQL Server enables you to send this JSON model object directly to database, parse it using built-in native OPENJSON function that parses JSON as tabular data, and insert results directly into the database table. substr takes the starting index and length of string to extract. In this two-part series, you’ll learn how to use JSON-Schema to. The spec which defines them describes them as a compact, URL-safe means of representing claims between parties by encoding them as JSON objects which can be digitally signed or encrypted. See the differences between the objects instead of just the new lines and mixed up properties. you can modify the merge proto pretty easily to make a. The best solution in this case is to use Lodash and its merge() method, which will perform a deeper merge, recursively merging object properties and arrays. A NodeList object is almost the same as an HTMLCollection object. The Problem. If you pass a JSON object as an argument, then it prints a formatted JSON object. Sometimes you may have the need to automatically create an object of your own class from the JSON data. Now, you have the option to use either YAML-formatted templates or JSON-formatted templates to model and describe your AWS infrastructure. Works in Node. While building a rich JavaScript application, you may get in a situation where you need to make multiple ajax requests, and it doesn’t make sense to work with the results until after all of them have returned. * Note: This method will return a new merged object, Source1 and Source2 original values will not be replaced. Like say a list of Strings, which we know under the covers a String is a List of Char [Char] what if the list is empty ? Do we have to check for that possibility and handle that? That doesn’t seem very helpful. The two main components of Spectral are rules and functions, which effectively generate a “flexible and customizable style guide for your JSON. How can I combine multiple list service responses into one json object? Edit Subject I am trying to to invoke two or more different rest services and combine the response objects into one object and display that combined object into a dynamic list. javaScript function that merges two JSON objects with the second object taking precedence in the event of a collision. I have written two blog posts on this before. Here's an example:. How To Combine REST API calls with JavaScript Promises in node. The first two points are platform-dependent. A JSON value can be another JSON object, array, number, string, boolean (true/false) or null. One of the reasons why Express. Each of your requests has a method (corresponding to HTTP method GET/PUT/POST/DELETE etc. JavaScript. The semicolon in bash is used to separate commands. Data integration was always an important application for XQuery, and. Keys must be strings, and values must be a valid JSON data type (string, number, object, array, boolean or null). tables[1]=// singale integer value (e. 1BestCsharp blog 6,503,278 views. Combine or merge JSON on node. differenceBy(array, [values], [iteratee=_. Sometimes you may have the need to automatically create an object of your own class from the JSON data. Use a comma after the ending bracket and you can pass several objects in your JSON string. js, feel free to read these two articles: iOS QuickTip: Getting and Reading JSON Data from a URL and How to Use JSON files in Node. While dealing with TCP streams or the file system, it's necessary to handle octet streams. length Unfortunately an object's property can be accessed using its key in dot notation provided that the key is a valid identifier in js, and keys starting with number isn't valid identifer in js. Rather than nesting one object inside another, create a separate object in one of those arrays and link the two together - even if you're sure it's a 1-to-1 relationship for both objects. This can be useful for things like: Storing object data in a database Outputting object data to the console for debugging Sending object data over AJAX or to an API The simple syntax for converting an object to […]. Using the append and prepend methods may invalidate an existing JSON document. Sorting an object is one of those little things which nobody ever considers useful to know (until it becomes so), but it's proven particularly useful to me in the last few months - not necessarily for the comparison of two objects at runtime (which, thankfully, there are much quicker things for in NodeJS/JavaScript), but for the ease of reading. To see DocumentDB SQL at work, we'll begin with a few simple JSON documents and walk through some simple queries against it. We have trained over 90,000 students from over 16,000 organizations on technologies such as Microsoft ASP. 9/20/2019; 4 minutes to read; In this article. This is a two part blog post. At last i found to use forEach and solve it. This is all you need to know to find out if two strings of your choosing are equal. JSON uses Object and Array as data structures and strings, number, true, false and null as values. Installation $ npm install json-concat --save To install json-concat onto your command line, you may require passing the -g flag. In addition, memory management and multithreading (asynchronous addons) can be tricky. My initial strategy was to convert them to JSON and compare the JSON strings. One of the reasons why Express. JSON is a very lightweight data-interchange format that only supports a handful of values:. This reflection based approach leads to more concise code and works well when you already know the schema while writing your Spark application. The practical guide for Building REST API in Nodejs and MongoDB include Passport and JWT : PGTFB. js frameworks. Note: Refer How to read Json data using JsonReader? page for dependent libraries. js (Part 3) Image Processing — Making Custom Filters — React. In this tutorial, we will show you how to use Jackson 2. JObject and T:Newtonsoft. Submitted by Jyoti Singh, on January 31, 2018 JSON is in an array format which holds the key-value pairs. js Modules with C++. Why GitHub? accepts objects and emits stringified JSON objects. js - manidlou/concatjson. You can browse for and follow blogs, read recent entries, see what others are viewing or recommending, and request your own blog. How to combine powershell objects ? This is a question I have recently asked my self. The fact-checkers, whose work is more and more important for those who prefer facts over lies, police the line between fact and falsehood on a day-to-day basis, and do a great job. Today, my small contribution is to pass along a very good overview that reflects on one of Trump’s favorite overarching falsehoods. Namely: Trump describes an America in which everything was going down the tubes under  Obama, which is why we needed Trump to make America great again. And he claims that this project has come to fruition, with America setting records for prosperity under his leadership and guidance. “Obama bad; Trump good” is pretty much his analysis in all areas and measurement of U.S. activity, especially economically. Even if this were true, it would reflect poorly on Trump’s character, but it has the added problem of being false, a big lie made up of many small ones. Personally, I don’t assume that all economic measurements directly reflect the leadership of whoever occupies the Oval Office, nor am I smart enough to figure out what causes what in the economy. But the idea that presidents get the credit or the blame for the economy during their tenure is a political fact of life. Trump, in his adorable, immodest mendacity, not only claims credit for everything good that happens in the economy, but tells people, literally and specifically, that they have to vote for him even if they hate him, because without his guidance, their 401(k) accounts “will go down the tubes.” That would be offensive even if it were true, but it is utterly false. The stock market has been on a 10-year run of steady gains that began in 2009, the year Barack Obama was inaugurated. But why would anyone care about that? It’s only an unarguable, stubborn fact. Still, speaking of facts, there are so many measurements and indicators of how the economy is doing, that those not committed to an honest investigation can find evidence for whatever they want to believe. Trump and his most committed followers want to believe that everything was terrible under Barack Obama and great under Trump. That’s baloney. Anyone who believes that believes something false. And a series of charts and graphs published Monday in the Washington Post and explained by Economics Correspondent Heather Long provides the data that tells the tale. The details are complicated. Click through to the link above and you’ll learn much. But the overview is pretty simply this: The U.S. economy had a major meltdown in the last year of the George W. Bush presidency. Again, I’m not smart enough to know how much of this was Bush’s “fault.” But he had been in office for six years when the trouble started. So, if it’s ever reasonable to hold a president accountable for the performance of the economy, the timeline is bad for Bush. GDP growth went negative. Job growth fell sharply and then went negative. Median household income shrank. The Dow Jones Industrial Average dropped by more than 5,000 points! U.S. manufacturing output plunged, as did average home values, as did average hourly wages, as did measures of consumer confidence and most other indicators of economic health. (Backup for that is contained in the Post piece I linked to above.) Barack Obama inherited that mess of falling numbers, which continued during his first year in office, 2009, as he put in place policies designed to turn it around. By 2010, Obama’s second year, pretty much all of the negative numbers had turned positive. By the time Obama was up for reelection in 2012, all of them were headed in the right direction, which is certainly among the reasons voters gave him a second term by a solid (not landslide) margin. Basically, all of those good numbers continued throughout the second Obama term. The U.S. GDP, probably the single best measure of how the economy is doing, grew by 2.9 percent in 2015, which was Obama’s seventh year in office and was the best GDP growth number since before the crash of the late Bush years. GDP growth slowed to 1.6 percent in 2016, which may have been among the indicators that supported Trump’s campaign-year argument that everything was going to hell and only he could fix it. During the first year of Trump, GDP growth grew to 2.4 percent, which is decent but not great and anyway, a reasonable person would acknowledge that — to the degree that economic performance is to the credit or blame of the president — the performance in the first year of a new president is a mixture of the old and new policies. In Trump’s second year, 2018, the GDP grew 2.9 percent, equaling Obama’s best year, and so far in 2019, the growth rate has fallen to 2.1 percent, a mediocre number and a decline for which Trump presumably accepts no responsibility and blames either Nancy Pelosi, Ilhan Omar or, if he can swing it, Barack Obama. I suppose it’s natural for a president to want to take credit for everything good that happens on his (or someday her) watch, but not the blame for anything bad. Trump is more blatant about this than most. If we judge by his bad but remarkably steady approval ratings (today, according to the average maintained by 538.com, it’s 41.9 approval/ 53.7 disapproval) the pretty-good economy is not winning him new supporters, nor is his constant exaggeration of his accomplishments costing him many old ones). I already offered it above, but the full Washington Post workup of these numbers, and commentary/explanation by economics correspondent Heather Long, are here. On a related matter, if you care about what used to be called fiscal conservatism, which is the belief that federal debt and deficit matter, here’s a New York Times analysis, based on Congressional Budget Office data, suggesting that the annual budget deficit (that’s the amount the government borrows every year reflecting that amount by which federal spending exceeds revenues) which fell steadily during the Obama years, from a peak of $1.4 trillion at the beginning of the Obama administration, to $585 billion in 2016 (Obama’s last year in office), will be back up to $960 billion this fiscal year, and back over $1 trillion in 2020. (Here’s the New York Times piece detailing those numbers.) Trump is currently floating various tax cuts for the rich and the poor that will presumably worsen those projections, if passed. As the Times piece reported: