const regex = /(?<!x)(\d{9}|\d{3}-\d{6}|\d{3}-\d{3}-\d{3})/gim;
// Alternative syntax using RegExp constructor
// const regex = new RegExp('(?<!x)(\\d{9}|\\d{3}-\\d{6}|\\d{3}-\\d{3}-\\d{3})', 'gim')
const str = `//Use cases that are working with the above regex.
x123456789
X123456789
x123-456-789
X123-456-789
123-456-789
ordernumber123-456-789
order number123-456789
order number 123456789
123-456789
123456789
ordernumber-x123456787
ordernumber-123456787
ordernumber - 123456789
ordernumber #123456789
ordernumber *anysplcharacter*123456789
ordernumber !@#\$%^&123456789
123456789*@*#123456789
social security number 123-456-789
ordernumber !@#\$%^&x123456789
123456789
#@%#\$%#\$123456789#\$%#\$^\$#
// Use cases that are not working with the above regex. Need to modify the regex
123456789
123 45 6789
123-45-6789
123-45-6789
123 – 45 – 6789
123.45.6789
123_45_6789
123 456 789
123-456-789
123 – 456 – 789
123.456.789
123_456_789
1234 56 789
1234-56-789
1234 – 56 – 789
1234.56.789
1234_56_789
12 345 6789
12-345-6789
12 – 345 – 6789
12.345.6789
12_345_6789`;
// 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