How to use JavaScript toLowerCase()? [SOLVED]


Written By - Olorunfemi Akinlua
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Getting started with JavaScript toLowerCase

In JavaScript, a "string" is a data type that represents a sequence of characters. Strings are used to store and manipulate text, and they are often used to represent words, sentences, and other pieces of human-readable text in your code.

One of the most common operations performed on strings is the conversion of the characters in the string to lowercase. This is often done to ensure that string comparisons are case-insensitive, or to ensure that all strings in a particular dataset are in the same case.

 

Using the JavaScript toLowerCase() method

To convert the characters in a string to lowercase, you can use the toLowerCase method, which is a built-in method of the String prototype in JavaScript. Here is an example of how to use the toLowerCase method:

let myString = "Welcome to GoLinux";
let lowercaseString = myString.toLowerCase();
console.log(lowercaseString); // "welcome to golinux"

Output

welcome to golinux

In this example, the toLowerCase method is called on the myString string, and it returns a new string with all of the characters in lowercase. The result is then assigned to the lowercaseString variable, and it is logged to the console.

 

Summary

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 comparisons are case-insensitive, or for converting all strings in a particular dataset to the same case.

 

References

String.prototype.toLowerCase() - JavaScript | MDN (mozilla.org)

 

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