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Determine which props causes React components to re-render
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import React, { Component } from 'react'; | |
export default function withPropsChecker(WrappedComponent) { | |
return class PropsChecker extends 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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