# Notes

Not starting with the traditional definitions but some quick one-liner notes about the different parts & pieces of the React. Component in React 1. Defining a Component       -  Always name your components with upper case first letter. 2. Types        - Function components        - Class components 3. Ways of holding data        - props              - prop types (runtime prop validation)        - states             - setState (merge previous state & current state) 4. Life cycle Saying: All React components must act like pure functions with respect to their props.  JSX 1. External domain language, to generate html using JS to build a custom react component.  2. Supports html like syntax in JS.  3. Each element is transformed into a javascript function call.  4. Tran...