What will happen if sourcemap is set as false in Angular

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I'm new in Angular. I saw sourcemap in tsconfig.json and by default it is "sourceMap": true. I had few doubts and found this link useful. Still I have the following doubt regarding the same.

I set "sourceMap": false, but couldn't find any change in the app. What will be the actual change if I set so?

Nothing will change in how the app runs.

The change will be in your debugging experience.

Source maps are helpful for debugging code. You write your code in TypeScript, and the compiler turns that source code into JavaScript. When your app is running in a browser like Firefox, the browser is running the JavaScript. Even though the browser is running that JavaScript, if you open the debugger in Firefox, the debugger will display the TypeScript source code and will let you set break points in it. The debugger is able to do that because of source maps, which map the TypeScript source code to the JavaScript runtime code. That is what source maps do: they map the source code to the runtime code to enable source code debugging at runtime.

What will happen if sourcemap is set as false in Angular, I'm new in Angular. I saw sourcemap in tsconfig.json and by default it is " sourceMap": true . I had few doubts and found this link useful. Still I have the following� Use "--sourcemaps=false" if you don't need to debug your code during development Discussion It will speed up build times significantly, especially if you are running ng serve and ng test at the same time.

When the sourceMap set to false. the output will be built with out a sourcemap file. And you can't debug with the browser on ts file without that.

What will happen if sourcemap is set as false in Angular, When the sourceMap set to false. the output will be built with out a sourcemap file . And you can't debug with the browser on ts file without that. OS Mac OSX Sierra 10.12.3 Versions @angular/cli: 1.0.0 node: 6.9.1 os: darwin x64 @angular/common: 4.0.0 @angular/compiler: 4.0.0 @angular/core: 4.0.0 @angular/forms

sourceMap is just for development experience (debug) and normally you don't need these files in production build and if you check angular.json you will found that it 's set to false for you

  "configurations": {
    "production": {
      "fileReplacements": [
        {
          "replace": "src/environments/environment.ts",
          "with": "src/environments/environment.prod.ts"
        }
      ],
      "optimization": true,
      "outputHashing": "all",
      "sourceMap": false,  <----
      "extractCss": true,
      "namedChunks": false,
      "aot": true,
      "extractLicenses": true,
      "vendorChunk": false,
      "buildOptimizer": true
    }

Use "--sourcemaps=false" if you don't need to debug your code , It will speed up build times significantly, especially if you are running ng serve In package.json add: "start:fast": "ng serve --sourcemaps=false" "test:fast": "ng I Really Enjoy the Google Maps component library in Angular I will be working in an enterprise setting, migrating web apps, and creating a UI library using React. Currently, the Angular CLI does not offer a way to adjust this URL through the CLI. Use some toggling on the server to set the SourceMap header dynamically. This approach makes use of hidden

Debug Angular apps in production without revealing source maps , When our app gets deployed to production, we often encounter different code At its core, a source map is a JSON file that contains all the names found in the code; mappings: this is where the whole magic happens. Angular CLI lets us configure if we want source-maps or not. "sourceMap": false, The .map files are for js and css (and now ts too) files that have been minified. They are called SourceMaps. When you minify a file, like the angular.js file, it takes thousands of lines of pretty code and turns it into only a few lines of ugly code.

file hash different when building with and without sourcemaps when , I am building the application with and without sourcemaps (2 times), here is the angular / angular-cli with and without sourcemaps when buildOptimizer set to true #17237 be happening because I am already using hidden sourcemap When I change to buildOptimizer: false in both production and� It is not related with angular-cli and is feature of typescript compiler, you may set\unset in tsconfig file like below, "sourceMap": true\false Hope this helps!!

ng test, --codeCoverage=true|false true|false|json|JSON If unset then will default to true if NodeJS option --preserve-symlinks is set. --sourceMap=true|false. The application builder uses the webpack build tool, with default configuration options specified in the workspace configuration file (angular.json) or with a named alternative configuration. A "production" configuration is created by default when you use the CLI to create the project, and you can use that configuration by specifying the