Explanation on Angular CLI 1.2.4 command ng build -


i learning angular4 , wondering ng build , ng build --prod us.

when running ng build, there are, instance main.bundle.js, main.bundle.js.map, generated inside dist folder

but ng build --prod, there only, instance main.90e798078cb11a3159ce.bundle.js, generated inside dist folder

can please explain how ng build work , without --prod

thank you

according angular-cli documentation:

both --dev/--target=development , --prod/--target=production 'meta' flags, set other flags. if not specify either --dev defaults.

and difference between them explained in link: https://github.com/angular/angular-cli/wiki/build#--dev-vs---prod-builds

  flag                 --dev    --prod --aot                   false     true --environment            dev      prod --output-hashing        media      --sourcemaps             true     false --extract-css           false     true

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