What are the jQuery letter case conversion functions?

jQuery letter case conversion function: 1. [toLowerCase()] method is used to convert strings to lowercase; 2. [toUpperCase()] method is used to convert strings to uppercase.

The operating environment of this tutorial: Windows 7 system, jquery version 3.2.1. This method is suitable for all brands of computers.

jQuery letter case conversion function:

1, toLowerCase() method is used to convert strings to lowercase.

Syntax

stringObject.toLowerCase()

Return value: a new string in which all uppercase characters of stringObject are converted to lowercase characters.

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

Syntax

stringObject.toUpperCase()

Return value: a new string in which all lowercase characters of stringObject are converted to uppercase characters.

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