zenius · May 2, 2019 13:10
diff --git a/React props b/React props
 const element = <Welcome name="Sara" />;

 When React sees an element representing a *user-defined component*, 
 it passes *JSX attributes* to this component as a single object. We call this object *“props”*.


 When an element type starts with a lowercase letter, it refers to a built-in component like <div> or <span> 
 and results in a string 'div' or 'span' passed to React.createElement. 
 **Types that start with a capital letter like <Foo /> compile to React.createElement(Foo)** 
 and correspond to a component defined or imported in your JavaScript file.

 All React components must act like pure functions with respect to their props. - React Docs
	const element = <Welcome name="Sara" />;

	When React sees an element representing a user-defined component,
	it passes JSX attributes to this component as a single object. We call this object “props”.


	When an element type starts with a lowercase letter, it refers to a built-in component like <div> or <span>
	and results in a string 'div' or 'span' passed to React.createElement.
	Types that start with a capital letter like <Foo /> compile to React.createElement(Foo)
	and correspond to a component defined or imported in your JavaScript file.

	All React components must act like pure functions with respect to their props. - React Docs