const regex = /(^(((\d\d)(([02468][048])|([13579][26]))0229)|(((\d\d)(\d\d)))((((0[1-9])|(1[0-2]))((0[1-9])|(1\d)|(2[0-8])))|((((0[13578])|(1[02]))31)|(((0[1,3-9])|(1[0-2]))(29|30)))))(([01]\d|2[0-3])([0-5]\d)([0-5]\d))$)/;
// Alternative syntax using RegExp constructor
// const regex = new RegExp('(^(((\\d\\d)(([02468][048])|([13579][26]))0229)|(((\\d\\d)(\\d\\d)))((((0[1-9])|(1[0-2]))((0[1-9])|(1\\d)|(2[0-8])))|((((0[13578])|(1[02]))31)|(((0[1,3-9])|(1[0-2]))(29|30)))))(([01]\\d|2[0-3])([0-5]\\d)([0-5]\\d))$)', '')
const str = `19741206131415`;
// 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