ngBootstrap or Bootstrap 4

Question

I have two questions:

First, does ngBootstrap support Angular 4? I can see examples on Google where people are using Angular 4 with ngBootstrap but at the official site they have mentioned that it has dependencies on Angular 5 and higher?

https://ng-bootstrap.github.io/#/getting-started

Screenshot:

Second question, I am confused between which one to use out of ngBootstrap or Bootstrap 4 for my project which requires a lot of custom styling of controls. Previously I have worked with Bootstrap 3 and I know how to customize it using custom_variables and Bootstrap 4 works in the same fashion but I can't find how ngBootstrap works for customization. One thing I know about that is by using ng-deep or /deep/ or >>> but how to give style to the controls in general?

Answer 1

Does ngBootstrap support Angular 4?

Not anymore, the last version that support Angular 4 was ng-bootstrap 1.0.0-beta.6

Which one to use out of ngBootstrap or Bootstrap 4?

ng-bootstrap can't work without Bootstrap 4 and the customisation of SASS variables is inside Bootstrap 4.

ng-bootstrap is just a replacement of the Javascript of Bootstrap in order to implement it in Angular.