Source: \unescape.js
/** Used to map HTML entities to characters. */
const htmlUnescapes = {
'&': '&',
'<': '<',
'>': '>',
'"': '"',
''': "'"
}
/** Used to match HTML entities and HTML characters. */
const reEscapedHtml = /&(?:amp|lt|gt|quot|#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