const regex = /^[\w\d\s]{23}([\d\s]{1,4}).*$/mg;
// Alternative syntax using RegExp constructor
// const regex = new RegExp('^[\\w\\d\\s]{23}([\\d\\s]{1,4}).*$', 'mg')
const str = `Name 1 N ASHA A 2 35 23
Name 2 R MONA A 3 25 56
Name 3 P TERY A 15 23 32
Name 4 Q JACK A 25 56 25
Name 5 D TOM A 115 57 45
Name 3 P SEN A1215 45 56 `;
// 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