Getting started with the toLowerCase method of JavaScript string objects (used to convert letters to lowercase)_Basic knowledge

JavaScript toLowerCase method

toLowerCase method is used to convert (English) string to lowercase and return the converted string. Its syntax is as follows:

Copy code The code is as follows:

str_object.toLowerCase()

toLowerCase method instance

Copy code The code is as follows:

Run this example, and the prompt box will pop up and output: aabbcc

toLocaleLowerCase method

toLocaleLowerCase method toLowerCase is basically the same, toLocaleLowerCase converts the string to lowercase according to the local method. Only a few languages, such as Turkish, have local case mapping.