const regex = /(.)(?:(?:0(?=1|\b)|1(?=2|\b)|2(?=3|\b)|3(?=4|\b)|4(?=5|\b)|5(?=6|\b)|6(?=7|\b)|7(?=8|\b)|8(?=9|\b)|9(?=0|\b)){3,})/g;
// Alternative syntax using RegExp constructor
// const regex = new RegExp('(.)(?:(?:0(?=1|\\b)|1(?=2|\\b)|2(?=3|\\b)|3(?=4|\\b)|4(?=5|\\b)|5(?=6|\\b)|6(?=7|\\b)|7(?=8|\\b)|8(?=9|\\b)|9(?=0|\\b)){3,})', 'g')
const str = `Welcome to RegExr v2.1 by gskinner.com, proudly hosted by Media Temple!
Edit the Expression & Text to see matches. Roll over matches or the expression for details. Undo mistakes with ctrl-z. Save Favorites & Share expressions with friends or the Community. Explore your results with Tools. A full Reference & Help is available in the Library, or watch the video Tutorial.
Sample text for testing:
abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
0123456789 _+-.,!@#\$%^&*();\\/|<>"'
12345 -98.7 3.141 .6180 9,000 +42
555.123.4567 +1-(800)-555-2468
foo@demo.net bar.ba@test.co.uk
www.demo.com http://foo.co.uk/
http://regexr.com/foo.html?q=bar
https://mediatemple.ne
`;
// 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