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next / express / next-routes
redux / react-redux / next-redux-wrapper / redux-thunk / redux-logger
babel-plugin-module-resolver / babel-plugin-styled-components
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Check if an identifier is defined
Check if an identifier is defined
$ npm install --save is-definedvar isDefined = require('is-defined')
isDefined('window')
//=> typeof window !== 'undefined'isDefined(identifier) -> stringRequired
Type: string
A JavaScript identifier.
MIT © Ben Drucker