How to convert letters to uppercase and lowercase in jquery?

Letter case conversion method: 1. Use toLowerCase() method to convert uppercase letters to lowercase, the syntax is ""uppercase letters".toLowerCase()"; 2. Use toUpperCase() method to convert lowercase letters to Uppercase, syntax ""lowercase letters".toUpperCase()".

The operating environment of this article: windows10 system, jquery2.2.4, this article is applicable to all brands of computers.

【Related recommendations: jQuery video tutorial】

jquery letter case conversion

1. Convert uppercase to lowercase

"ABC".toLowerCase()//转小写

toLowerCase() method is used to convert a string to lowercase.

2. Convert lowercase to uppercase

"abc".toUpperCase()//转大写

toUpperCase() method is used to convert a string to uppercase.

Use case:

When the input box loses focus, convert the content to uppercase

For more programming-related knowledge, please visit:ProgrammingIntroduction! !

The above is the detailed content of How to convert letters to uppercase and lowercase in jquery?. For more information, please follow other related articles on the PHP Chinese website!