These free JS plugins, libraries, and effects can be used extensively by the web developers to add in their projects. These useful components can also be used for creating menu animations, typography effects, sliders, preloaders, modal windows effects, content filters, and more.
As the name suggests, Clipboard.js lets you copy content to clipboard without any dependencies. This means your app can copy data to clipboard without relying on Flash or anything else. Clipboard.js is an modern approach that works seamlessly across all popular web browsers and consumes about of 3 KB after being zipped.
AngularJS is widely extensible that suits it well to be used with other libraries. Moreover, apart from Google itself, Angular is also used by the likes of PayPal Checkout and iTunes Connect.