JavaScript String replaceAll

Changing a substring of textual content inside a bigger string has all the time been deceptive in JavaScript. I wrote Exchange All Occurrences of a String in JavaScript years in the past and it is nonetheless one in every of my most learn articles.

The confusion lies in that exchange solely replaces the primary incidence of a substring, not all occurrences. For instance:

'yayayayayaya'.exchange('ya', 'na');
// nayayayayaya

To switch all situations of a substring, you have wanted to make use of a daily expression:

'yayayayayaya'.exchange(/ya/g, 'na');
// nananananana

Utilizing common expressions is definitely highly effective however let’s be trustworthy — oftentimes we merely wish to exchange all situations of a easy substring that should not require a daily expression.

Fortunately, this 12 months the JavaScript language offered us with String.prototype.replaceAll, a way for changing with out utilizing common expressions:

'yayayayayaya'.replaceAll('ya', 'na');
// nananananana

Generally an API exists in a complicated format and requirements our bodies merely want to enhance the state of affairs. I am glad they did so with replaceAll!