Twitter / X Handle in JS
Match Twitter/X @handles — 1 to 15 characters of letters, digits, or underscores preceded by @.
Try it in the JS tester →Pattern
regexJS
@([A-Za-z0-9_]{1,15})\b (flags: g)JavaScript / ECMAScript code
jsJavaScript
const re = new RegExp("@([A-Za-z0-9_]{1,15})\\b", "g");
const input = "Follow @jack and @TwitterDev for updates";
const matches = [...input.matchAll(re)];
console.log(matches.map(m => m[0]));Uses `String.prototype.matchAll` for global iteration (Node 12+ / all modern browsers).
How the pattern works
@ matches the literal at-sign. The capturing group ([A-Za-z0-9_]{1,15}) captures 1–15 characters of the Twitter username alphabet. \b prevents partial matches inside longer words.
Examples
Input
Follow @jack and @TwitterDev for updatesMatches
@jack@TwitterDev
Input
@user_123 liked your postMatches
@user_123
Input
no handles hereNo match
—