js toUpperCase method usage example_basic knowledge

The example in this article describes the usage of the toUpperCase method of js. Share it with everyone for your reference. The specific analysis is as follows:

Definition and usage:

toUpperCase() method is used to convert strings to uppercase.

Grammar:

stringObject.toUpperCase()

Return value:

A new string in which all lowercase characters of stringObject are converted to uppercase characters.

Example:

In this example, "Hello world! jb51.net" will be displayed in uppercase letters:

Copy code The code is as follows:

The effect is as follows: HELLO WORLD! JB51.NET

I hope this article will be helpful to everyone’s JavaScript programming design.