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String toLowerCase() Method with Example in JavaScript
JavaScript String toLowerCase() Method: Here, we are going to learn about the toLowerCase() method of the string in JavaScript with Example.
Submitted by IncludeHelp, on February 05, 2019
String toLowerCase() Method
toLowerCase() Method is a string method in JavaScript, it is used to converts all alphabets in lowercase and returns the new string with lowercase alphabets.
Syntax
new_string = str.toLowerCase();
Parameters
- str is the main string to be converted.
- new_string is the returned new string with all alphabets in lowercase.
Sample Input/Output
Input: "Hello World!"
Output: "hello world!"
Input: "Hello123@"
Output: "hello123@"
Example
<html>
<head>
<title>JavaScipt Example</title>
</head>
<body>
<script>
var main_str = "Hello World!";
var new_str = main_str.toLowerCase();
document.write("main_str = " + main_str + "<br>");
document.write("new_str = " + new_str + "<br>");
main_str = "Hello123@";
new_str = main_str.toLowerCase();
document.write("main_str = " + main_str + "<br>");
document.write("new_str = " + new_str + "<br>");
</script>
</body>
</html>
Output
main_str = Hello World!
new_str = hello world!
main_str = Hello123@
new_str = hello123@
JavaScript String Object Methods »