Javascript get ASCII value of char charCodeAt() & codePointAt()

ASCII is a Character Encoding Scheme. The full form of ASCII is American Standard Code for Information Interchange.

ASCII Encode any character in 7 bits. it was developed for telegraph code.

ASCII is used to represent 128 English characters in Numbers.

ASCII value for A is 65, B is 66, and similar.

ASCII value for a is 97, b is 98 etc

Each character has a unique ASCII value we will use the following two methods to get ASCII value.

  1. charCodeAt()
  2. codePointAt()

Both functions return the Unicode value of the character at a specified index value.

In the title, we say how to get ASCII value but why we are finding Unicode value

In Unicode first 128 characters are ASCII characters. so accessing the first 128 characters will return ASCII Value.

Find ASCII value of a character : Javascript get ASCII value using charCodeAt()

Function charCodeAt() returns a number between 0 to 65535 that represents the UTF-16 code of character at specified index.

Capital A ASCII value Example

Find ASCII value of a character : Javascript get ASCII value using codePointAt()

Function codePointAt() returns the unicode value of character at specified position.

ASCII value of capital A Example

Get ASCII value of char javascript

Get ASCII value of character
Fig: Get ASCII value of character

Generating ASCII Values Table in JavaScript

String.fromCharCode() is used here to get character from ASCII value.

Not all the character are printable to it is showing box.

ASCII value of alphabets

ASCII value of Capital Letter start from 65 and end at 90. Small case letter start from 97 and end at 122.

To print Capital Letters start loop from 65 and end it to 90 ans for small latter start with position 97 and at 122.

ASCII value of Capital Letter

ASCII value of Small Letter

Here we shownd how Javascript get ASCII value of char can work to get ASCII Values.

Q How to convert javascript char to ASCII

Here we discussed two methods

charCodeAt() and codePointAt() methods.

Q How to convert javascript ASCII to char

String.fromCharCode() is used to convert ASCII code to character conversion.