const regex = /^(\+{0,})(\d{0,})([(]{1}\d{1,3}[)]{0,}){0,}(\s?\d+|\+\d{2,3}\s{1}\d+|\d+){1}[\s|-]?\d+([\s|-]?\d+){1,2}(\s){0,}$/gm;
// Alternative syntax using RegExp constructor
// const regex = new RegExp('^(\\+{0,})(\\d{0,})([(]{1}\\d{1,3}[)]{0,}){0,}(\\s?\\d+|\\+\\d{2,3}\\s{1}\\d+|\\d+){1}[\\s|-]?\\d+([\\s|-]?\\d+){1,2}(\\s){0,}$', 'gm')
const str = `(123) 456-7890
(123)456-7890
123-456-7890
1234567890
+31636363634
+3(123) 123-12-12
+3(123)123-12-12
+3(123)1231212
+3(123) 12312123
+3(123) 123 12 12
075-63546725
+7910 120 54 54
910 120 54 54
8 999 999 99 99
`;
// 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