const regex = /(\(|)([1-9]{3}|[1-9]{2})(\)| {1})( {1}|)(((\d{5}\-\d{4})|(\d{5}\d{4}))|((\d{4}\-\d{4})|(\d{4}\d{4})))|\d{5}(\-|)\d{4}|\d{4}(\-|)\d{4}/;
// Alternative syntax using RegExp constructor
// const regex = new RegExp('(\\(|)([1-9]{3}|[1-9]{2})(\\)| {1})( {1}|)(((\\d{5}\\-\\d{4})|(\\d{5}\\d{4}))|((\\d{4}\\-\\d{4})|(\\d{4}\\d{4})))|\\d{5}(\\-|)\\d{4}|\\d{4}(\\-|)\\d{4}', '')
const str = ``;
// Reset `lastIndex` if this regex is defined globally
// regex.lastIndex = 0;
let m;
if ((m = regex.exec(str)) !== null) {
// The result can be accessed through the `m`-variable.
m.forEach((match, groupIndex) => {
console.log(`Found match, group ${groupIndex}: ${match}`);
});
}
Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for JavaScript, please visit: https://developer.mozilla.org/en/docs/Web/JavaScript/Guide/Regular_Expressions