value.toUpperCase is not a function code example
Example 1: uppercase javascript
var str = "Hello World!";
var res = str.toUpperCase(); //HELLO WORLD!
Example 2: to upper javascrit
var str = "Hello World!";
var res = str.toUpperCase();
var str = "Hello World!";
var res = str.toUpperCase(); //HELLO WORLD!
var str = "Hello World!";
var res = str.toUpperCase();