charcode javascript code example

Example 1: javascript convert between string and ascii

let ascii = 'a'.charCodeAt(0); // 97
let char = String.fromCharCode(ascii); // 'a'

Example 2: how to return character associated to character code javascript

console.log(String.fromCharCode(65));
// expected output: "A"

Example 3: Javascript convert character to ascii

var myVar='A';
var myVarAscii = myVar.charCodeAt(0); //convert 'A' character to it's ASCII code (65)

Example 4: javascript charat

/*
charAt() method
This method takes in a string and an index as input
and returns the character at that position in the specified string
*/

myString = "Hello World!";

console.log(myString.charAt(0)); // outputs "H"
console.log(myString.charAt(5)); // outputs " "
console.log(myString.charAt(8)); // outputs "r"
// If the specified index is bigger or equal to the length of the string,
// the output will be "".
console.log(myString.charAt(23)); // outputs ""

Example 5: javascript charcode

const sentence = 'The quick brown fox jumps over the lazy dog.';

const index = 4;

console.log(`The character code ${sentence.charCodeAt(index)} is equal to ${sentence.charAt(index)}`);
// expected output: "The character code 113 is equal to q"

Example 6: charcodeAt javascript

const sentence = 'The quick brown fox jumps over the lazy dog.';

const index = 4;
// return the chartcode of the character with index N°4
const charcode= sentence.charCodeAt(index);
console.log (charcode);  
// expected output: "The character code 113 is equal to q"

// remember that charCodeAt return the code on ♦ keypress event ♦