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| /** Used to map HTML entities to characters. */ | |
| const htmlUnescapes = { | |
| '&': '&', | |
| '<': '<', | |
| '>': '>', | |
| '"': '"', | |
| ''': "'" | |
| } | |
| /** Used to match HTML entities and HTML characters. */ | |
| const reEscapedHtml = /&(?:amp|lt|gt|quot|#(0+)?39);/g | |
| const reHasEscapedHtml = RegExp(reEscapedHtml.source) | |
| /** | |
| * The inverse of `escape`this method converts the HTML entities | |
| * `&`, `<`, `>`, `"` and `'` in `string` to | |
| * their corresponding characters. | |
| * | |
| * **Note:** No other HTML entities are unescaped. To unescape additional | |
| * HTML entities use a third-party library like [_he_](https://mths.be/he). | |
| * | |
| * @since 0.6.0 | |
| * @category String | |
| * @param {string} [string=''] The string to unescape. | |
| * @returns {string} Returns the unescaped string. | |
| * @see escape, escapeRegExp | |
| * @example | |
| * | |
| * unescape('fred, barney, & pebbles') | |
| * // => 'fred, barney, & pebbles' | |
| */ | |
| function unescape(string) { | |
| return (string && reHasEscapedHtml.test(string)) | |
| ? string.replace(reEscapedHtml, (entity) => (htmlUnescapes[entity] || "'")) | |
| : (string || '') | |
| } | |
| export default unescape |