Categories
28°C, New York
Home Javascript How to usethe toLowerCase() Method in Javascript

How to usethe toLowerCase() Method in Javascript

Approach 2: Using a Custom Function with map() and toLowerCase()

This approach uses the built-in toLowerCase() method of the string object to convert all characters in the string to lowercase.

Example: Here, the toLowerCase() method is called on the originalString variable, which contains the string “Hello World”. The result is stored in the lowercasedString variable, and when logged to the console, it prints “hello world”.

Javascript




let originalString = "Hello World";
let lowercasedString = originalString.toLowerCase();
 
console.log(lowercasedString); // Output: "hello world"
 






                        









													
													
												

												
												

													
													
Output


hello world




													
													
												

												
											

											
											

												
How to Lowercase a String in JavaScript ?

												
												

													
													
In JavaScript, converting a string to lowercase means transforming all the characters in the string to their lowercase equivalents. This operation is often used to ensure consistent comparison or formatting of text.

													
													
												

												
												

													
													
Below are the approaches used to Lowercase a string in JavaScript:

													
													
												

												
												

													
													


Table of Content


    

  • Using the toLowerCase() Method
    • 

  • Using a Custom Function with map() and toLowerCase()
    • 

  • Using a Regular Expression
    • 




													
													
												

												
											

										


										
										

											
Similar Reads

											
											

												
													

														Approach 1: Using the toLowerCase() Method

													

														This approach uses the built-in toLowerCase() method of the string object to convert all characters in the string to lowercase....
													

												
											

											
											

												
													

														Approach 2: Using a Custom Function with map() and toLowerCase()

													

														...
													

												
											

											
											

												
													

														Approach 3: Using a Regular Expression

													

														This approach defines a custom function toLowerCaseCustom that splits the string into an array of characters, maps over each character converting it to lowercase using toLowerCase(), and then joins the characters back into a string....
													

												
											

											
										


									

									

										
Tags:

										
										#JavaScript
										
										#Web Technologies
										

									

									

										

											
										

										

											
											
												Approach 2: Using a Custom Function with map() and toLowerCase()