The toUpperCase() method converts a string to uppercase letters. The toUpperCase() method does not change the original string.

Dec 8, 2022 · Yes, any string in JavaScript has a toLowerCase() method that will return a new string that is the old string in all lowercase. The old string will remain unchanged. So, you can …

Sep 16, 2021 · This article explains how to convert a string to lowercase and uppercase characters. We'll also go over how to make only the first letter in a word uppercase and how to …

Oct 22, 2016 · You could run over each character, and then covert it to lowercase if it's in uppercase, to uppercase if it's in lowercase or take it as is if it's neither (if it's a comma, colon, …

Sep 15, 2022 · JavaScript provides native methods to transform the character case of a string, including toUpperCase (), toLowerCase (), and a custom function for title case. These …

Jun 22, 2009 · str.toUpperCase() === str && str.toLowerCase() !== str, if you really don't want to use regExp. The answer by josh and maleki will return true on both upper and lower case if the …

Feb 27, 2023 · This concise article shows you how to convert a string to upper or lower case in JavaScript, from theory to practical examples. To convert a given string to uppercase, you can …

Aug 24, 2022 · In this article, you learned how you can easily convert a string to uppercase and lowercase using the toUpperCase() and toLowerCase() JavaScript methods respectively, and …

Learn easy methods to convert text to lowercase and uppercase in JavaScript. This comprehensive guide covers built-in methods, practical examples, and best practices for …

The toLowerCase() method converts a string to lowercase letters. The toLowerCase() method does not change the original string.