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babel-react-render-defender
Advanced tools
Babel preset for react-render-defender.
React Render Defender lets you know when any React component has rendered twice in less than 200ms. This helps you find components which render when they really shouldn't. If a component has rendered twice in the specified time, you will see a message in the console like this:
$ npm install --save-dev babel-react-render-defender
You should add this preset only for development.
.babelrc
.babelrc
{
"presets": ["babel-react-render-defender"]
}
webpack.config.js
Example of webpackConfig file
webpackConfig.module.loaders = [{
test: /\.(js|jsx)$/,
exclude: /node_modules/,
loader: 'babel',
query: {
cacheDirectory: true,
presets: __DEV__
? ['es2015', 'react', 'stage-0', 'react-hmre', 'babel-react-render-defender']
: ['es2015', 'react', 'stage-0']
}
},
The default threshold is 200ms. If you want to change it or go into quiet mode, do the following:
rdefender.json
{
"LogCallForm" : 200
}
"quiet_mode": true
to the file (don't forget to remove it when you are done with your heavy debugging):{
"LogCallForm" : 200,
"quiet_mode": true
}
Thanks to Alex Nudelman & Boris Nadion for their help. Developed as part of my work in Samanage.
FAQs
Babel render defender
We found that babel-react-render-defender demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 1 open source maintainer collaborating on the project.
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