Javascript String toLowerCase()

Introduction

Javascript String toLowerCase() converts string to lower case. 

str.toLowerCase()

The converted string is returned from the method and leaves the original string unchanged. 

let stringValue = "hello WORLD"; 
let a = stringValue.toLowerCase();
console.log(a);  // "HELLO WORLD" 
console.log(stringValue);//from  w  w w  . j  a v  a 2s .  co m



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