Jul 10, 2025 · The toLowerCase() method of String values returns this string converted to lower case.

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

You'll learn how to use the JavaScript toLowerCase () method to return a string with all the characters converted to lowercase.

Jan 16, 2026 · The JavaScript toLowerCase () method Converts all characters of a string to lowercase and returns a new string without changing the original. Used for case-insensitive comparisons

Sep 16, 2021 · The toLowerCase() method converts the string specified into a new one that consists of only lowercase letters and returns that value. It means that the old, original string is not changed or …

The toLowerCase() method in JavaScript converts all the uppercase characters in a string to lowercase characters and returns the result. The original string remains unchanged as this method returns a …

Jun 26, 2025 · Convert text to lowercase in JavaScript reliably, handling locale, arrays, performance, and common pitfalls with toLowerCase () and Intl methods.

Nov 29, 2024 · What Is The toLowerCase () method in JS? The toLowerCase () method belongs to the String.prototype in JavaScript, making it available on all string objects. Here is its basic signature: …

toLowerCase () Return Value Returns a new string representing the calling string converted to lowercase.

Dec 9, 2022 · The toLowerCase method is a built-in method of the String prototype in JavaScript that is used to convert the characters in a string to lowercase. This method is useful for ensuring that string …