olibooty
/ checkForUndefinedCSSClasses.js
Last active
June 18, 2021 09:55
— forked from broofa/checkForUndefinedCSSClasses.js
ES module for detecting undefined CSS classes (uses mutation observer to monitor DOM changes). `console.warn()`s undefined classes.
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| /** | |
| * Sets up a DOM MutationObserver that watches for elements using undefined CSS | |
| * class names. Performance should be pretty good, but it's probably best to | |
| * avoid using this in production. | |
| * | |
| * Usage: | |
| * | |
| * import cssCheck from './checkForUndefinedCSSClasses.js' | |
| * | |
| * // Call before DOM renders (e.g. in <HEAD> or prior to React.render()) |