const regex = /(?:<a\s+(?:[^>]*)?href="|(?!^)\G)\K.*?([A-Z]?\d{5}).*?(?=")/gi;
// Alternative syntax using RegExp constructor
// const regex = new RegExp('(?:<a\\s+(?:[^>]*)?href="|(?!^)\\G)\\K.*?([A-Z]?\\d{5}).*?(?=")', 'gi')
const str = `<a href="/uploads/2014/04/Draft-99990-Details.doc">Draft 99995 Details</a>
<a href="/uploads/2014/04/01090-vs-G01010-series.pdf">01095 vs G01015 Series</a>`;
// 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