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String - Encrypt.js
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String - Encrypt.js
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// Define the encrypt function that takes a string and a key as parameters
function encrypt(str, key) {
// Calculate the new key based on the original key
var newkey = key % 26;
// Create an empty array to hold the encrypted characters
var charArray = [];
// Loop through each character in the string
for (var i = 0; i < str.length; i++){
// Get the ASCII code of the current character and add the new key
var letterPosition = str.charCodeAt(i) + newkey;
// If the resulting ASCII code is less than or equal to 122 (the ASCII code for 'z')
if (letterPosition <= 122){
// Convert the ASCII code to a character and add it to the array
charArray.push(String.fromCharCode(letterPosition));
} else {
// If the resulting ASCII code is greater than 122, wrap around to 'a' (the ASCII code for 'a')
// Note that we use 96 instead of 97 because we want to start from the ASCII code for 'a' rather than 'b'
charArray.push(String.fromCharCode(96 + letterPosition % 122));
}
}
// Join the array of characters into a string and return it
return charArray.join('');
}
// Call the encrypt function with the string "hai" and key 2, and print the result to the console
console.log(encrypt("hai", 2));