const regex = /[(\d]
(?:
\b \d{3} \)
(?= .{3,5} \W \b )
\g<spb> \d{3}
|
\B \d{2}
(?= .{4,6} \W \b )
\g<sp> \d{3}
)
\g<sp> \d{4} \b
(?<spb> [ ]{0,2} ){0} # separator after bracket
(?<sp> - [ ]? | [ ] -? [ ]? ){0} # other separators
/g;
// Alternative syntax using RegExp constructor
// const regex = new RegExp('[(\\d]
(?:
\\b \\d{3} \\)
(?= .{3,5} \\W \\b )
\\g<spb> \\d{3}
|
\\B \\d{2}
(?= .{4,6} \\W \\b )
\\g<sp> \\d{3}
)
\\g<sp> \\d{4} \\b
(?<spb> [ ]{0,2} ){0} # separator after bracket
(?<sp> - [ ]? | [ ] -? [ ]? ){0} # other separators
', 'g')
const str = `(555) 555- 5555
(555) 555 -5555
(555)555 - 5555
(555) 555-5555
(555) 555 - 5555
(555)555- 5555
(555) 555 -5555
555-555-5555
555- 555-5555
555 -555-5555
555-555- 5555
555-555 -5555
555 - 555-5555
555-555 - 5555
555 555 5555
555 - 555 - 5555
555 555 - 5555
`;
// 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