Learning JavaScript? Download my free JavaScript Handbook 🔥

Return a new string with the text all in lower case.

Does not mutate the original string.

Does not accept any parameter.


'Testing'.toLowerCase() //'testing'

Works similarly to toLocaleLowerCase(), but does not consider locales at all.

Edit this page

Here's my latest YouTube video. I talk about why I think that dogs are a great help for developers working remotely: