জাভাস্ক্রিপ্ট রেগেক্স দিয়ে কমা রিপ্লেস করা

লুকআহেড রেগেক্স /,(?=[^,]*$)/ ব্যবহার করে শেষ কমা রিপ্লেস করা যায়।

উদাহরণ

const makingRegularExpression = /,(?=[^,]*$)/; 
function replaceComma(values){ 
    console.log(values, " ==== replaced by JavaScript ==== ", values.replace(makingRegularExpression, " JavaScript")); 
} 
replaceComma("My Favorite subject is,"); 
replaceComma("My Favorite subject is, and teacher name is Adam Smith"); 
replaceComma("My Favorite subject is, and got the marks 89");

কমান্ড: node fileName.js

আউটপুট

PS C:\Users\Amit\javascript-code> node demo164.js
My Favorite subject is, ==== replaced by JavaScript ==== My Favorite subject is JavaScript
My Favorite subject is, and teacher name is Adam Smith ==== replaced by JavaScript ==== My Favorite subject is JavaScript and teacher name is Adam Smith
My Favorite subject is, and got the marks 89 ==== replaced by JavaScript ==== My Favorite subject is JavaScript and got the marks 89