How to get a substring before the nth point in javascript

Question

I want to get a substring that is before the nth point. For example I have:

let str = "my.string.is.like.that"

Now suppose I want substr= "my.string.is.like" that is all before the 4th point. How can I do that?

Answer 1

You can use split and join,

Second parameter in split is used to limit the number of element to be included in final output

let str = "my.string.is.like.that"

let limited = str.split('.',4).join('.')

console.log(limited)