How does javascript convert a string from uppercase to lowercase

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In javascript, you can convert an upper-case string to lowercase using the toLowerCase() method, which converts all upper-case characters in a string to lowercase, in the syntax format "string.toLowerCase()."

Operating environment of this tutorial: Windows 7 system, Javascript version 1.8.5, Dell G3 computer.

In javascript, you can use the toLowerCase() function to convert upper-case strings to lower-case.

Here are some examples:

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, converting all upper-case characters in the string to lowercase characters.

syntax

stringObject.toLowerCase()

return value

A new lowercase string.

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