Components
How to Create the LWC Multi-Select Combobox that Salesforce is Still Missing
Use the Salesforce Lightning Design System (SLDS) to create your own reusable custom component
salesforcedesign-systemslightning
Create Your Own Angular Component Library
The basics of building an Angular component library and publishing it to the npm store.
angularcomponentslibraries
How to Pass Data From One Component to Other Component in React?
Passing data from one component to another component
reactcomponentsjavascript