Difference between ng build and npm run build

[mdufoud1214]

am using angular 7 and server side using .net core 2.1
if i do npm run build --prod --aot my dist folder size is around 40mb and my application working as expected,
but if i do ng build --prod --aot my dist folder size is reducing to around 9mb but am not able to run applications some map files are missing getting 404 error(find below screenshot)

i want reduce my bundle size to improve my angular app performance

[alan-agius4]

You need to use —- to pass arguments to npm scripts.
npm run build —- —-prod

[mdufoud1214]

@alan-agius4 npm run build —- —-prod it is working as expected , it is reducing dist folder size and application is running ,but where to add this in package.json file

"build-watch": "../@angular/cli/bin/ng build --deploy-url=dist/ --output-hashing all --watch",

[rakotomandimby]

Hi, I faced the same issue when having to specify the "base-href" parameter, and the double dash was the solution!
https://mihamina.rktmb.org/2019/04/npm-run-build-base-href.html

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