JavaScript String method toLowerCase() and toUpperCase()
JavaScript provides two helpful functions for converting text to uppercase and lowercase.
String.toLowerCase()
converts a string to lowercaseString.toUpperCase()
converts a string to uppercase.
var text = 'Hello Poopcoder!'; // returns 'hello poopcoder!' var lower = text.toLowerCase(); // returns 'HELLO POOPCODER!' var upper = text.toUpperCase();
Both methods works in all modern browsers.