Answers for "7.6.3. Character Encodings in JavaScript¶"

7.6.3. Character Encodings in JavaScript¶

/*The string method charCodeAt takes an index and returns the ASCII
code of the character at that index.*/

let nonprofit = "LaunchCode";

console.log(nonprofit.charCodeAt(0));
console.log(nonprofit.charCodeAt(1));
console.log(nonprofit.charCodeAt(2));
console.log(nonprofit.charCodeAt(3));
console.log(nonprofit.charCodeAt(4));
console.log(nonprofit.charCodeAt(5));
console.log(nonprofit.charCodeAt(6));
console.log(nonprofit.charCodeAt(7));
console.log(nonprofit.charCodeAt(8));
console.log(nonprofit.charCodeAt(9));

76
97
117
110
99
104
67
111
100
101


/*To convert an ASCII code to an actual character, use 
String.fromCharCode().*/

let codes = [76, 97, 117, 110, 99, 104, 67, 111, 100, 101];

let characters = String.fromCharCode(codes[0]) + String.fromCharCode(codes[1])
               + String.fromCharCode(codes[2]) + String.fromCharCode(codes[3])
               + String.fromCharCode(codes[4]) + String.fromCharCode(codes[5])
               + String.fromCharCode(codes[6]) + String.fromCharCode(codes[7])
               + String.fromCharCode(codes[8]) + String.fromCharCode(codes[9]);

console.log(characters);