REACT CHEATSHEET
INSTALLATION SPECIAL PROPERTIES
React
<script src="https://unpkg.com/react@15/dist/react.js"></script>
$ $ npm install react --save
$ $ bower install react --save
React DOM
<script src="https://unpkg.com/react-dom@15/dist/react-dom.js"></script>
$ npm install react-dom
$ bower install react-dom --save
key
—Unique identifier for an element to turn arrays/lists into hashes for better performance. For
example:
key={id}.
ref—Reference to an element via this.refs.NAME. For example: ref="email" will create a
this.refs.email DOM node or ReactDOM.findDOMNode(this.refs.email).
style—Accepts an object for camelCased CSS styles instead of a string (immutable since v0.14).
For example: style={{color: red}}.
className—HTML class attribute. For example: className="btn".
htmlFor—HTML for attribute. For example: htmlFor="email".
dangerouslySetInnerHTML—Sets inner HTML to raw HTML by providing an object with the key
__html.
children—Sets the content of the element via this.props.children. For example:
this.props.children[0].
data-NAME—Custom attribute. For example: data-tooltip-text="...".
RENDERING
ES5
ReactDOM.render(
React.createElement(
Link,
{href: 'https://Node.University'}
)
),
document.getElementById('menu')
)
ES5+JSX
ReactDOM.render(
<Link href='https://Node.University'/>,
document.getElementById('menu')
)
Server-side rendering
const ReactDOMServer = require('react-dom/server')
ReactDOMServer.renderToString(Link, {href: 'https://Node.University'})
ReactDOMServer.renderToStaticMarkup(Link, {href:
➥
'https://Node.University'})
LlFECYCLE EVENTS
componentWillMount function()
componentDidMount function()
componentWillReceiveProps function(nextProps)
shouldComponentUpdate function(nextProps, nextState) -> bool
componentWillUpdate function(nextProps, nextState)
componentDidUpdate function(prevProps, prevState)
componentWillUnmount function()
COMPONENT PROPERTIES AND METHODS
Properties
this.refs—Lists components with a ref property.
this.props—Lists any properties passed to an element (immutable).
this.state—Lists states set by setState and getInitialState (mutable). Avoid setting
state manually with
this.state=...
this.isMounted
—Flags whether the element has a corresponding DOM node.
Methods
setState(changes)—Changes state (partially) to this.state, and triggers a rerender
replaceState(newState)—Replaces this.state, and triggers a rerender
forceUpdate()—Triggers an immediate DOM rerender
propTypes
Types available under React.PropTypes:
any array bool element func
node number object string
To make a property required (warning only), append .isRequired.
More methods
instanceOf(constructor)
oneOf (['News', 'Photos'])
oneOfType([propType, propType])
Custom validation
propTypes: {
customProp: function(props, propName, componentName) {
if (!/regExPattern/.test(props[propName])) {
return new Error('Validation failed!');
}
}
}
REACT ADDONS
As npm modules:
react-addons-css-transition-group
react-addons-perf
react-addons-test-utils
react-addons-pure-render-mixin
react-addons-linked-state-mixin
react-addons-clone-with-props
react-addons-create-fragment
react-addons-css-transition-group
react-addons-linked-state-mixin
react-addons-pure-render-mixin
react-addons-shallow-compare
react-addons-transition-group
react-addons-update
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