const regex = new RegExp('^30([0-4][0-9a-f])(02([0-2][0-9a-f])(00)?[a-f0-9]{2,64})(02([0-2][0-9a-f])(00)?[a-f0-9]{2,64})(01|02|03|81|82|83)?$', 'i')
const str = `304402200e2244c8966e5b1a150f49d0f6bac978a9cfa1c4b32b4cf783c9f7c93be4bc6b022077018e8d6da02ec60f93b3e936fd283aa87beab1c373839616d1ad5a9bc4dcfb`;
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