What are the .map files used for in angular-cli and can ng build not create these files?

Question

ng build of angular-cli creates 3 files:

inline.bundle.js
vendor.bundle.js
main.bundle.js

and also a map file for each own. What for?

I

Answer 1

@Madhu's answers disables it for any ng build command. If you want to conditionally or temporarily disable it from your builds run:

Angular 8

ng build --watch --source-map=true/false

Angular 7

ng build --watch --sourcemaps=true/false

Angular 6

ng build --watch --no-sourcemap

Answer 2

Below command will not generate the source files while generating the build:

>ng build --prod -sm false

and if you want to generate the source files the use below command:

>ng build --prod -sm true

Here is the screenshot:

Answer 3

.map files are used for debugging your application. 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!!