javascitp uppercase letter code example
Example 1: uppercase javascript
var str = "Hello World!";
var res = str.toUpperCase(); //HELLO WORLD!
Example 2: uppercase and lowercase letters in js
str.toLowerCase()
str.toUpperCase()
var str = "Hello World!";
var res = str.toUpperCase(); //HELLO WORLD!
str.toLowerCase()
str.toUpperCase()