broofa
/ checkForUndefinedCSSClasses.js
Last active
June 22, 2025 08:19
ES module for detecting undefined CSS classes (uses mutation observer to monitor DOM changes). `console.warn()`s undefined classes.
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| /** | |
| * 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()) |
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| function getNoun(number, one, two, five) { | |
| let n = Math.abs(number); | |
| n %= 100; | |
| if (n >= 5 && n <= 20) { | |
| return five; | |
| } | |
| n %= 10; | |
| if (n === 1) { | |
| return one; | |
| } |
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| function declOfNum(number, titles) { | |
| cases = [2, 0, 1, 1, 1, 2]; | |
| return titles[ (number%100>4 && number%100<20)? 2 : cases[(number%10<5)?number%10:5] ]; | |
| } | |
| use: | |
| declOfNum(count, ['найдена', 'найдено', 'найдены']); |