const regex = /^(000[1-9]|00[1-9]\d|0[1-9]\d\d|100\d|10[1-9]\d|1[1-9]\d{2}|[2-9]\d{3}|[1-9]\d{4}|1\d{5}|2[0-6]\d{4}|27[0-4]\d{3}|275[0-6]\d{2}|2757[0-5]\d|275760)-(0[1-9]|1[012])-(0[1-9]|[12]\d|3[01])$/gm;
// Alternative syntax using RegExp constructor
// const regex = new RegExp('^(000[1-9]|00[1-9]\\d|0[1-9]\\d\\d|100\\d|10[1-9]\\d|1[1-9]\\d{2}|[2-9]\\d{3}|[1-9]\\d{4}|1\\d{5}|2[0-6]\\d{4}|27[0-4]\\d{3}|275[0-6]\\d{2}|2757[0-5]\\d|275760)-(0[1-9]|1[012])-(0[1-9]|[12]\\d|3[01])$', 'gm')
const str = `2018-06-14
Min possible year :
0001-05-31
Max possible year :
275760-01-01
`;
// 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