// Functions for generating random number lowercase uppercase letters , symbols
/ Math.random method genrate a random floating-point numbers
Math.floor() function returns the largest integer less than or equal to a given number.
For generating a random uppercase lowercase text random numbers symbols we use Charcode
http://stevehardie.com/2009/09/character-code-list-char-code//
function getRandomLower() {
return String.fromCharCode(Math.floor(Math.random() * 26) + 97);
}
function getRandomUpper() {
return String.fromCharCode(Math.floor(Math.random() * 26) + 65);
}
function getRandomNumber() {
return +String.fromCharCode(Math.floor(Math.random() * 10) + 48);
}
// adding a all functions into a object called randomFunc
const randomFunc = {
lower: getRandomLower,
upper: getRandomUpper,
number: getRandomNumber,
symbol: getRandomSymbol,
};
// function for generating random password
function generatePassword(lower, upper, number, symbol, length) {
let generatedPassword = "";
const typesCount = lower + upper + number + symbol;
// filter out unchecked types
const typesArr = [{ lower }, { upper }, { number }, { symbol }].filter(
(item) => Object.values(item)[0]
);
// console.log(typesArr);
// creating a loop for calling generator function for each type
for (let i = 0; i < length; i += typesCount) {
typesArr.forEach((type) => {
const funcName = Object.keys(type)[0];
generatedPassword += randomFunc[funcName]();
});
}
// slicing password from 0 to length
const finalPassword = generatedPassword.slice(0, length);
return finalPassword;
}
// copy to clipboard
let button = document.getElementById("clipboardBtn");
// add click event listner on button
button.addEventListener("click", (e) => {
e.preventDefault();
// execute command for copy text by selecting textarea text with id
document.execCommand(
"copy",
false,
document.getElementById("PasswordResult").select()
);
});
// Functions for generating random number lowercase uppercase letters , symbols
/ Math.random method genrate a random floating-point numbers Math.floor() function returns the largest integer less than or equal to a given number. For generating a random uppercase lowercase text random numbers symbols we use Charcode http://stevehardie.com/2009/09/character-code-list-char-code/ /
function getRandomLower() { return String.fromCharCode(Math.floor(Math.random() * 26) + 97); }
function getRandomUpper() { return String.fromCharCode(Math.floor(Math.random() * 26) + 65); }
function getRandomNumber() { return +String.fromCharCode(Math.floor(Math.random() * 10) + 48); }
function getRandomSymbol() { const symbols = "!@#$%^&(){}[]=<>/,."; return symbols[Math.floor(Math.random() symbols.length)]; }
// adding a all functions into a object called randomFunc const randomFunc = { lower: getRandomLower, upper: getRandomUpper, number: getRandomNumber, symbol: getRandomSymbol, };
// adding a click event listner to generate button const generate = document.getElementById("generateBtn"); generate.addEventListener("click", () => { const length = document.getElementById("Passwordlength").value; const hasUpper = document.getElementById("uppercase").checked; const hasLower = document.getElementById("lowercase").checked; const hasNumber = document.getElementById("numbers").checked; const hasSymbol = document.getElementById("symbols").checked; const result = document.getElementById("PasswordResult"); result.innerText = generatePassword( hasLower, hasUpper, hasNumber, hasSymbol, length ); // console.log(hasLower, hasUpper, hasNumber, hasSymbol); });
// function for generating random password function generatePassword(lower, upper, number, symbol, length) { let generatedPassword = ""; const typesCount = lower + upper + number + symbol; // filter out unchecked types const typesArr = [{ lower }, { upper }, { number }, { symbol }].filter( (item) => Object.values(item)[0] ); // console.log(typesArr);
}
// copy to clipboard let button = document.getElementById("clipboardBtn"); // add click event listner on button button.addEventListener("click", (e) => { e.preventDefault(); // execute command for copy text by selecting textarea text with id document.execCommand( "copy", false, document.getElementById("PasswordResult").select() ); });