To convert a string in JavaScript to lowercase, use the toLocaleLowerCase() method.
You can try running the following code to learn how to use toLocaleLowerCase() method in JavaScript -
Live Demonstration
<!DOCTYPE html>
<html>
<body>
<script>
var a = "WELCOME!";
document.write(a.toLocaleLowerCase());
</script>
</body>
</html>The above is the detailed content of How to convert a string to lowercase letters in JavaScript?. For more information, please follow other related articles on the PHP Chinese website!
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