JavaScript provides several built-in methods for manipulating strings, including one called toUpperCase() which can be used to convert the first letter of a string to uppercase.
In this article, we'll learn to build a functionality that could capitalize only the first character of the string. Let's consider an example: const message = 'hello world!'; Let's say I want to make the h in the above string to uppercase. I could do that by selecting the first...
concat():It is used to join two different strings replace():It is used to replace the content of the string toUpperCase():It is used to convert a string into uppercase. There are other methods available in JavaScript to manipulate string data but there is no built-in function available to...
In JavaScript, there is no built-in function to check if every character in a given string is in uppercase format or not. So, we have to implement our function. Here, we will create a function calledisUpperCase(), an anonymous arrow function, to tell us whether all the characters in a...
In JavaScript, you can use the Array.map() method to iterate over all elements and then use the string methods to change the case of the elements.Here is an example that demonstrates how to use the String.toUpperCase() method along with Array.map() to uppercase all elements in an array...
How to Convert a JavaScript Array of Strings to Uppercase? Daniyal Hamid 2 years ago 1 min read In JavaScript, you can make all strings in an array of strings uppercase by calling the String.prototype.toUpperCase() method on every element of the array using Array.prototype.map(), for exa...
How do I make the first letter of a string uppercase, but not change the case of any of the other letters? For example: "this is a test"->"This is a test" "the Eiffel Tower"->"The Eiffel Tower" "/index.html"->"/index.html" ...
To convert a string to uppercase, we can use the built-in toUpperCase() method in JavaScript. reactgo.com recommended courseJavaScript - The Complete Guide 2023 (Beginner + Advanced) Here is an example that converts a string how are you to uppercase. const message = "how are you"; cons...
In JavaScript string or character is to be converted into uppercase using str.toUpperCase() method this is used for converting entire strings into the Upper case format. Whenever we used toUpperCase() method the return value is to be string format and has converted into the uppercase the value...
Method 3: Case-Insensitive String Comparison Using Regular Expression With test() Method The predefined JavaScript “test()” method, which uses a regular expression, is another way to compare two strings. Based on the specified regex, it determines whether strings are equal or not. ...