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09_props-validation.html
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09_props-validation.html
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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<title>Props Validation</title>
<link href="https://fonts.googleapis.com/css?family=Roboto+Mono:300,300i,700,700i|Roboto:300,300i,700,700i" rel="stylesheet">
<link rel="stylesheet" href="css/react.css">
<script src="https://unpkg.com/react@latest/dist/react.js"></script>
<script src="https://unpkg.com/prop-types/prop-types.js"></script>
<script src="https://unpkg.com/react-dom@latest/dist/react-dom.js"></script>
<script src="https://unpkg.com/babel-standalone@6.15.0/babel.min.js"></script>
</head>
<body>
<div id="root"></div>
<script type="text/babel" src="js/readMore.js"></script>
<script type="text/babel" data-presets="es2015,stage-2,react" data-plugins="transform-class-properties">
( function() {
/**
* MyButton
*
* React function component for stateless components
*
* @param {Object} props props that are passed to the component
*
* @return {Object} React Element Object
*/
class MyComponent extends React.Component
{
/**
* propTypes
*
* define how the props are expected
*
* @type {Object}
*/
static propTypes = {
// required string:
title : PropTypes.string.isRequired,
// required object shape:
objectShape : PropTypes.shape( {
id : PropTypes.number.isRequired,
name : PropTypes.string.isRequired,
} ).isRequired,
// required react node
node : PropTypes.node,
// one of the defined types
onOfType : PropTypes.oneOfType( [
PropTypes.string,
PropTypes.number,
PropTypes.object,
] ),
// array of types:
arrayOf : PropTypes.arrayOf(PropTypes.number),
// required function
requiredFunc : PropTypes.func.isRequired,
}
/**
* defaultProps
*
* define default values for the props here
*
* @type {Object}
*/
static defaultProps = {
title : 'Props Validation (default)',
objectShape : {
id : 123,
name : 'test'
},
node : React.createElement( 'div' ),
onOfType : 'string',
arrayOf : [ 1, 2, 3 ],
requiredFunc : () => {},
}
render()
{
return (
<div>
<h1>{ this.props.title }</h1>
<pre>this.props = { JSON.stringify( this.props, null, 2 ) }</pre>
<ReadMore url="https://facebook.github.io/react/docs/typechecking-with-proptypes.html" />
</div>
);
}
}
// render to Component:
ReactDOM.render(
<MyComponent
title="Props Validation"
objectShape={ {
id : 123,
name : 1, // <-- this will fail, it is expected to be a string
} }
arrayOf={ [ 'string', 'string' ] } // <-- fail because it expects a numbered array
/>,
document.querySelector( '#root' )
);
}() )
</script>
</body>
</html>