const regex = /(\d[\s-]?)?[\(\[\s-]{0,2}?\d{3}[\)\]\s-]{0,2}?\d{3}[\s-]?\d{4}/ig;
// Alternative syntax using RegExp constructor
// const regex = new RegExp('(\\d[\\s-]?)?[\\(\\[\\s-]{0,2}?\\d{3}[\\)\\]\\s-]{0,2}?\\d{3}[\\s-]?\\d{4}', 'ig')
const str = `something something here's a phone number : (123) 456-7890
(123)-456-7890 is my number, how wonderful is that?
still talking about 123 456 7890, the magnificent phone number
123-456-7890 !`;
// Reset `lastIndex` if this regex is defined globally
// regex.lastIndex = 0;
let m;
while ((m = regex.exec(str)) !== null) {
// This is necessary to avoid infinite loops with zero-width matches
if (m.index === regex.lastIndex) {
regex.lastIndex++;
}
// 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