With the new Angular router, you can add a [routerLinkActive]="['your-class-name']"
attribute to all your links:
<a [routerLink]="['/home']" [routerLinkActive]="['is-active']">Home</a>
Or the simplified non-array format if only one class is needed:
<a [routerLink]="['/home']" [routerLinkActive]="'is-active'">Home</a>
Or an even simpler format if only one class is needed:
<a [routerLink]="['/home']" routerLinkActive="is-active">Home</a>
See the poorly documented routerLinkActive
directive for more info. (I mostly figured this out via trial-and-error.)
UPDATE: Better documentation for the routerLinkActive
directive can now be found here. (Thanks to @Victor Hugo Arango A. in the comments below.)