How does javascript convert a string from uppercase to lowercase

This article introduces the knowledge of "how javascript converts string uppercase to lowercase". In the operation of actual cases, many people will encounter such a dilemma, so let the editor lead you to learn how to deal with these situations. I hope you can read it carefully and be able to achieve something!

In javascript, you can use the toLowerCase () method to convert uppercase strings to lowercase, which converts all uppercase characters in the string to lowercase characters, with the syntax format "string.toLowerCase ()".

The operating environment of this tutorial: windows7 system, javascript1.8.5 version, Dell G3 computer.

In javascript, you can use the toLowerCase () function to convert uppercase strings to lowercase.

Here is an example to learn about:

Var str= "Hello World!" console.log (str.toLowerCase ())

Output:

Var str= "HELLO WORLD!" console.log (str.toLowerCase ())

Output:

Description:

The toLowerCase () method is used to convert a string to lowercase, and all uppercase characters in the string can be converted to lowercase characters.

Grammar

StringObject.toLowerCase ()

Return value

A new lowercase string.

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