Fix the following program so that it works and it prints the encrypted message p

Question

Fix the following program so that it works and it prints the encrypted message provided on the command line. REQUIREMENT: The program must run with –use-strict directive: >> node --use-strict cipher.js HELLO

function encrypt(str) { Plain = "ABCDEFGHIJKLMNOPQRSTUVWXYZ".split(''); Cipher = "XYZABCDEFGHIJKLMNOPQRSTUVW".split(''); for (var i = 0; i < str.length; i ++) { index = Plain.indexOf(str[i]) str[i] = Cipher[index]; } } const wordinput = process.argv[2]; encrypt(wordinput) console.log(wordinput);

Explanation / Answer

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"use strict";

function encrypt(str) {

Plain = "ABCDEFGHIJKLMNOPQRSTUVWXYZ".split('');

Cipher = "XYZABCDEFGHIJKLMNOPQRSTUVW".split('');

var new_str = "";

for (var i = 0; i < str.length; i++) {

index = Plain.indexOf(str[i].toUpperCase());

if(index!=-1)

new_str += Cipher[index];

else

new_str += str[i];

}

return new_str;

}

const wordinput = process.argv[2];

console.log(encrypt(wordinput));

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