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Determine which props causes React components to re-render
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| import React from 'react'; | |
| export default function withPropsChecker(WrappedComponent) { | |
| return class PropsChecker extends React.Component { | |
| componentWillReceiveProps(nextProps) { | |
| Object.keys(nextProps) | |
| .filter(key => { | |
| return nextProps[key] !== this.props[key]; | |
| }) | |
| .map(key => { | |
| console.log( | |
| 'changed property:', | |
| key, | |
| 'from', | |
| this.props[key], | |
| 'to', | |
| nextProps[key] | |
| ); | |
| }); | |
| } | |
| render() { | |
| return <WrappedComponent {...this.props} />; | |
| } | |
| }; | |
| } | |
| // Usage | |
| withPropsChecker(MyComponent) |
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