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Direktori : /var/www/html/node_modules/tiny-warning/src/ |
Current File : /var/www/html/node_modules/tiny-warning/src/index.js |
// @flow const isProduction: boolean = process.env.NODE_ENV === 'production'; export default function warning(condition: mixed, message: string): void { // don't do anything in production // wrapping in production check for better dead code elimination if (!isProduction) { // condition passed: do not log if (condition) { return; } // Condition not passed const text: string = `Warning: ${message}`; // check console for IE9 support which provides console // only with open devtools if (typeof console !== 'undefined') { console.warn(text); } // Throwing an error and catching it immediately // to improve debugging // A consumer can use 'pause on caught exceptions' // https://github.com/facebook/react/issues/4216 try { throw Error(text); } catch (x) {} } }