| 12345678910111213141516171819 | let Selector = require('../selector')class PlaceholderShown extends Selector {  /**   * Return different selectors depend on prefix   */  prefixed(prefix) {    if (prefix === '-moz-') {      return ':-moz-placeholder'    } else if (prefix === '-ms-') {      return ':-ms-input-placeholder'    }    return `:${prefix}placeholder-shown`  }}PlaceholderShown.names = [':placeholder-shown']module.exports = PlaceholderShown
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