CODE EXAMPLE FOR JAVASCRIPT

import bootstrap in file angular

//@import '~bootstrap/scss/reboot';
//@import "~bootstrap/scss/root";
//@import '~bootstrap/scss/type';
@import '~bootstrap/scss/maps';
@import '~bootstrap/scss/grid';
@import '~bootstrap/scss/bootstrap-utilities';
@import '~bootstrap/scss/helpers';
@import '~bootstrap/scss/containers';