regex (Javascript) allow comma to be ignore

Question

const value = 'I am a student. My age is 5';
const regex = new RegExp('\\b' + value, 'i'); //what to add here?

console.log(regex.test('I am a student, my age is 5')); //true
console.log(regex.test('I am a student my age is 5')); //false

I want to ignore the , to make my second string to true.

Answer 1

you probably want a more generic regex like this:

const regex =  /^I am a \w+[.,]? My age is \d+$/i

console.log(regex.test('I am a student, my age is 5')); //should be true
console.log(regex.test('I am a student my age is 5')); //should be true
console.log(regex.test('I am a INSERTWORD my age is 5')); //should be true
console.log(regex.test('I am a student my age is 230')); //should be true

a less genric regex could look like this:

const regex =  /^I am a student[.,]? My age is 5$/i

console.log(regex.test('I am a student, my age is 5')); //should be true
console.log(regex.test('I am a student my age is 5')); //should be true
console.log(regex.test('I am a INSERTWORD my age is 5')); //should be false
console.log(regex.test('I am a student my age is 230')); //should be false

if you want to learn more about regexes go to one of:

https://regex101.com/ regex 101 is my go to regex testing website.

https://www.regextester.com/

https://regexr.com/