How to Convert a Character to ASCII Value in JavaScript

Other Questions JavaScript
1

I would like to know the method for transforming a character into its corresponding ASCII value in JavaScript. For instance, I need to get the code 10 from the newline character ‘\n’.

2

You can use the charCodeAt method in JavaScript to get the ASCII value of a character. Here’s how you do it:

let asciiValue = '\n'.charCodeAt(0);
console.log(asciiValue); // 10
3

To convert a character to its ASCII value in JavaScript, utilizing the charCodeAt method is indeed a straightforward approach. The method is called on the string whose character you want to convert, and it returns the UTF-16 code unit value, which is equivalent to the ASCII for characters within the ASCII range.

If you need the ASCII value for characters within longer strings or at different positions, you can specify the index for the targeted character. For example, if you have a string 'Hello' and desire the ASCII value of the character 'e', you can retrieve it as follows:

let string = 'Hello';
let asciiValue = string.charCodeAt(1); 
console.log(asciiValue); // 101

In this example, charCodeAt(1) is used because string indices start at 0, so 'e' is at position 1.

As a practical note, remember that charCodeAt fetches the code unit of the character at a given position, which matches ASCII for many English characters, but may differ for characters outside the ASCII range.

4

To convert a character to its ASCII value in JavaScript, you simply use the charCodeAt method. This method offers an efficient way to handle such conversions without any added complexity.

let asciiValue = '\n'.charCodeAt(0);
console.log(asciiValue); // 10

Here’s how it works:

  • charCodeAt(0) gets the ASCII value of the first character in the string.

This method is not limited to single characters. For example, to find the ASCII value of the character 'e' in the string 'Hello':

let string = 'Hello';
let asciiValue = string.charCodeAt(1);
console.log(asciiValue); // 101

Remember, ASCII values correspond directly with UTF-16 code units for standard characters like English letters.