const regex = /^0(\d{1,2}(-\d{4}){2}|\d{3}(-\d{3}){2}|\d{2}-\d{3}-\d{4}|\d{3}-\d{2}-\d{4}|\d{4}-\d{1}-\d{4})$/mg;
// Alternative syntax using RegExp constructor
// const regex = new RegExp('^0(\\d{1,2}(-\\d{4}){2}|\\d{3}(-\\d{3}){2}|\\d{2}-\\d{3}-\\d{4}|\\d{3}-\\d{2}-\\d{4}|\\d{4}-\\d{1}-\\d{4})$', 'mg')
const str = `090-1111-1111
03-1111-1111
0120-111-111
042-111-1111
0436-11-1111
02222-2-2222
0333-333-33
033-333-333
01-1111-1111
0-11111-1111
02-11111-111
022-123-1231
`;
// 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