const regex = /^((\d\d[2468][048]|\d\d[13579][26]|\d\d0[48]|[02468][048]00|[13579][26]00)-02-29|\d{4}-((0[13578]|1[02])-(0[1-9]|[12]\d|3[01])|(0[469]|11)-(0[1-9]|[12]\d|30)|(02)-(0[1-9]|1\d|2[0-8])))T([01]\d|2[0-3]):[0-5]\d:[0-5]\d\.\d{3}([+-]([01]\d|2[0-3]):[0-5]\d|Z)$/gm;
// Alternative syntax using RegExp constructor
// const regex = new RegExp('^((\\d\\d[2468][048]|\\d\\d[13579][26]|\\d\\d0[48]|[02468][048]00|[13579][26]00)-02-29|\\d{4}-((0[13578]|1[02])-(0[1-9]|[12]\\d|3[01])|(0[469]|11)-(0[1-9]|[12]\\d|30)|(02)-(0[1-9]|1\\d|2[0-8])))T([01]\\d|2[0-3]):[0-5]\\d:[0-5]\\d\\.\\d{3}([+-]([01]\\d|2[0-3]):[0-5]\\d|Z)$', 'gm')
const str = `2023-02-28T00:00:00.000Z
2023-02-29T00:00:00.000Z
2024-02-29T00:00:00.000Z
2023-06-30T00:00:00.000Z
2023-06-31T00:00:00.000Z
2023-07-31T00:00:00.000Z
2023-07-31T00:00:00.000-05:30
2023-07-31T00:59:59.000Z
2023-07-31T00:60:59.000Z
2023-07-31T00:59:60.000Z`;
// 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