Hello Guys! Welcome to Coding Torque. In this blog, we are going to create a Random Password Generator using HTML, CSS and JavaScript. You should create this project if you are a beginner and learning JavaScript..
Before we start, here are some more javascript projects for you to practice:
1. Filter Cards using JavaScript
2. Typing Effect using JavaScript
3. Email Validator using JavaScript
4. Tip Calculator using JavaScript
5. QR Code Generator using JavaScript
I would recommend you don't just copy and paste the code, just look at the code and type by understanding it.
Let's go step by step:
Step 1: HTML Code
Starter Template
<!doctype html>
<html lang="en">
<head>
<!-- Required meta tags -->
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<!-- CSS -->
<link rel="stylesheet" href="style.css">
<title>Random Strong Password Generator using JavaScript with Source Code - @code.scientist x @codingtorque</title>
</head>
<body>
<!-- Further code here -->
<script src="script.js"></script>
</body>
</html>Paste the below code in your <body> tag
<div class="container">
<h2 class="title">Password Generator</h2>
<div class="result">
<div class="result__title field-title">Generated Password</div>
<div class="result__info right">click to copy</div>
<div class="result__info left">copied</div>
<div class="result__viewbox" id="result">CLICK GENERATE</div>
<button id="copy-btn" style="--x: 0; --y: 0"><i class="far fa-copy"></i></button>
</div>
<div class="length range__slider" data-min="4" data-max="32">
<div class="length__title field-title" data-length='0'>length:</div>
<input id="slider" type="range" min="4" max="32" value="16" />
</div>
<div class="settings">
<span class="settings__title field-title">settings</span>
<div class="setting">
<input type="checkbox" id="uppercase" checked />
<label for="uppercase">Include Uppercase</label>
</div>
<div class="setting">
<input type="checkbox" id="lowercase" checked />
<label for="lowercase">Include Lowercase</label>
</div>
<div class="setting">
<input type="checkbox" id="number" checked />
<label for="number">Include Numbers</label>
</div>
<div class="setting">
<input type="checkbox" id="symbol" />
<label for="symbol">Include Symbols</label>
</div>
</div>
<button class="btn generate" id="generate">Generate Password</button>
</div>Step 2: CSS(SCSS) Code
Create a file style.scss and paste the code below. If you don't know how to run sass file, you can refer this article: How to run SASS in HTML
* {
margin: 0;
padding: 0;
box-sizing: border-box;
}
body {
width: 100%;
height: 100vh;
background-image: linear-gradient(to top, #209cff 100%, #68e0cf 200%);
display: flex;
justify-content: center;
align-items: center;
}
button {
border: 0;
outline: 0;
}
.container {
margin: 40px 0;
width: 400px;
height: 600px;
padding: 10px 25px;
background: #0a0e31;
border-radius: 10px;
box-shadow: 0 0 5px rgba(0, 0, 0, 0.45), 0 4px 8px rgba(0, 0, 0, 0.35), 0 8px 12px rgba(0, 0, 0, 0.15);
font-family: "Montserrat";
h2.title {
font-size: 1.75rem;
margin: 10px -5px;
margin-bottom: 30px;
color: #fff;
}
}
$field-color: rgba(255, 255, 255, 0.08);
$field-height: 65px;
$field-border-radius: 8px;
.result {
position: relative;
width: 100%;
height: 65px;
overflow: hidden;
&__info {
&.right {
right: 8px;
}
&.left {
left: 8px;
}
position: absolute;
bottom: 4px;
color: #fff;
font-size: 0.8rem;
transition: all 150ms ease-in-out;
transform: translateY(200%);
opacity: 0;
}
&__viewbox {
width: 100%;
height: 100%;
background: $field-color;
border-radius: $field-border-radius;
color: #fff;
text-align: center;
line-height: 65px;
}
#copy-btn {
position: absolute;
top: var(--y);
left: var(--x);
width: 38px;
height: 38px;
background: #fff;
border-radius: 50%;
opacity: 0;
transform: translate(-50%, -50%) scale(0);
transition: all 350ms cubic-bezier(0.175, 0.885, 0.32, 1.275);
cursor: pointer;
z-index: 2;
&:active {
box-shadow: 0 0 0 200px rgba(255, 255, 255, 0.08);
}
}
&:hover {
#copy-btn {
opacity: 1;
transform: translate(-50%, -50%) scale(1.35);
}
}
}
.field-title {
position: absolute;
top: -10px;
left: 8px;
transform: translateY(-50%);
font-weight: 800;
color: rgba(255, 255, 255, 0.5);
text-transform: uppercase;
font-size: 0.65rem;
pointer-events: none;
user-select: none;
}
.options {
width: 100%;
height: auto;
margin: 50px 0;
}
.range__slider {
position: relative;
width: 100%;
height: calc(#{$field-height} - 10px);
display: flex;
justify-content: center;
align-items: center;
background: $field-color;
border-radius: $field-border-radius;
margin: 30px 0;
&::before,
&::after {
position: absolute;
color: #fff;
font-size: 0.9rem;
font-weight: bold;
}
&::before {
content: attr(data-min);
left: 10px;
}
&::after {
content: attr(data-max);
right: 10px;
}
.length__title::after {
content: attr(data-length);
position: absolute;
right: -16px;
font-variant-numeric: tabular-nums;
color: #fff;
}
}
$range-handle-color: rgb(255, 255, 255) !default;
$range-handle-color-hover: rgb(212, 212, 212) !default;
$range-handle-size: 20px !default;
$range-track-color: rgba(255, 255, 255, 0.314) !default;
$range-track-height: 2px !default;
$range-label-width: 60px !default;
#slider {
-webkit-appearance: none;
width: calc(100% - (#{$range-label-width + 10px}));
height: $range-track-height;
border-radius: 5px;
background: $range-track-color;
outline: none;
padding: 0;
margin: 0;
cursor: pointer;
// Range Handle
&::-webkit-slider-thumb {
-webkit-appearance: none;
width: $range-handle-size;
height: $range-handle-size;
border-radius: 50%;
background: $range-handle-color;
cursor: pointer;
transition: all 0.15s ease-in-out;
&:hover {
background: $range-handle-color-hover;
transform: scale(1.2);
}
}
&::-moz-range-thumb {
width: $range-handle-size;
height: $range-handle-size;
border: 0;
border-radius: 50%;
background: $range-handle-color;
cursor: pointer;
transition: background 0.15s ease-in-out;
&:hover {
background: $range-handle-color-hover;
}
}
}
.settings {
position: relative;
height: auto;
widows: 100%;
display: flex;
flex-direction: column;
.setting {
position: relative;
width: 100%;
height: calc(#{$field-height} - 10px);
background: $field-color;
border-radius: $field-border-radius;
display: flex;
align-items: center;
padding: 10px 25px;
color: #fff;
margin-bottom: 8px;
input {
opacity: 0;
position: absolute;
+ label {
user-select: none;
&::before,
&::after {
content: "";
position: absolute;
transition: 150ms cubic-bezier(0.24, 0, 0.5, 1);
transform: translateY(-50%);
top: 50%;
right: 10px;
cursor: pointer;
}
&::before {
height: 30px;
width: 50px;
border-radius: 30px;
background: rgba(214, 214, 214, 0.434);
}
&::after {
height: 24px;
width: 24px;
border-radius: 60px;
right: 32px;
background: #fff;
}
}
&:checked {
& + label:before {
background: #5d68e2;
transition: all 150ms cubic-bezier(0, 0, 0, 0.1);
}
& + label:after {
right: 14px;
}
}
&:focus {
+ label:before {
box-shadow: 0 0 0 2px rgba(255, 255, 255, 0.75);
}
}
&:disabled{
+ label{
&:before, &:after{ cursor: not-allowed }
&:before{ background: #4f4f6a }
&:after{ background: #909090 }
}
}
}
}
}
.btn.generate {
user-select: none;
position: relative;
width: 100%;
height: 50px;
margin: 10px 0;
border-radius: $field-border-radius;
color: #fff;
border: none;
background-image: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
letter-spacing: 1px;
font-weight: bold;
text-transform: uppercase;
cursor: pointer;
transition: all 150ms ease;
&:active {
transform: translateY(-3%);
box-shadow: 0 4px 8px rgba(255, 255, 255, 0.08);
}
}
.support{
position: fixed;
right: 10px;
bottom: 10px;
padding: 10px;
display: flex;
}
a{
margin: 0 20px;
color: #fff;
font-size: 2rem;
transition: all 400ms ease;
}
a:hover{
color: #222;
}
.github-corner svg{
position:absolute;
right:0;
top:0;
mix-blend-mode:darken;
color:#eeeeee;
fill:#353535;
clip-path: polygon(0 0, 100% 0, 100% 100%);
}
.github-corner:hover .octo-arm{
animation:octocat-wave .56s;
}
@keyframes octocat-wave{
0%, 100%{
transform:rotate(0);
}
20%, 60%{
transform:rotate(-20deg);
}
40%, 80%{
transform:rotate(10deg);
}
}
Output Till Now
Step 3: JavaScript Code
Create a file script.js and paste the code below.
// This is a simple Password Generator App that will generate random password maybe you can you them to secure your account.
// I tried my best to make the code as simple as possible please dont mind the variable names.
// Also this idea came in my mind after checking Traversy Media's latest video.
// Clear the concole on every refresh
console.clear();
// set the body to full height
// document.body.style.height = `${innerHeight}px`
// Range Slider Properties.
// Fill : The trailing color that you see when you drag the slider.
// background : Default Range Slider Background
const sliderProps = {
fill: "#0B1EDF",
background: "rgba(255, 255, 255, 0.214)",
};
// Selecting the Range Slider container which will effect the LENGTH property of the password.
const slider = document.querySelector(".range__slider");
// Text which will show the value of the range slider.
const sliderValue = document.querySelector(".length__title");
// Using Event Listener to apply the fill and also change the value of the text.
slider.querySelector("input").addEventListener("input", event => {
sliderValue.setAttribute("data-length", event.target.value);
applyFill(event.target);
});
// Selecting the range input and passing it in the applyFill func.
applyFill(slider.querySelector("input"));
// This function is responsible to create the trailing color and setting the fill.
function applyFill(slider) {
const percentage = (100 * (slider.value - slider.min)) / (slider.max - slider.min);
const bg = `linear-gradient(90deg, ${sliderProps.fill} ${percentage}%, ${sliderProps.background} ${percentage +
0.1}%)`;
slider.style.background = bg;
sliderValue.setAttribute("data-length", slider.value);
}
// Object of all the function names that we will use to create random letters of password
const randomFunc = {
lower: getRandomLower,
upper: getRandomUpper,
number: getRandomNumber,
symbol: getRandomSymbol,
};
// Random more secure value
function secureMathRandom() {
return window.crypto.getRandomValues(new Uint32Array(1))[0] / (Math.pow(2, 32) - 1);
}
// Generator Functions
// All the functions that are responsible to return a random value taht we will use to create password.
function getRandomLower() {
return String.fromCharCode(Math.floor(Math.random() * 26) + 97);
}
function getRandomUpper() {
return String.fromCharCode(Math.floor(Math.random() * 26) + 65);
}
function getRandomNumber() {
return String.fromCharCode(Math.floor(secureMathRandom() * 10) + 48);
}
function getRandomSymbol() {
const symbols = '~!@#$%^&*()_+{}":?><;.,';
return symbols[Math.floor(Math.random() * symbols.length)];
}
// Selecting all the DOM Elements that are necessary -->
// The Viewbox where the result will be shown
const resultEl = document.getElementById("result");
// The input slider, will use to change the length of the password
const lengthEl = document.getElementById("slider");
// Checkboxes representing the options that is responsible to create differnt type of password based on user
const uppercaseEl = document.getElementById("uppercase");
const lowercaseEl = document.getElementById("lowercase");
const numberEl = document.getElementById("number");
const symbolEl = document.getElementById("symbol");
// Button to generate the password
const generateBtn = document.getElementById("generate");
// Button to copy the text
const copyBtn = document.getElementById("copy-btn");
// Result viewbox container
const resultContainer = document.querySelector(".result");
// Text info showed after generate button is clicked
const copyInfo = document.querySelector(".result__info.right");
// Text appear after copy button is clicked
const copiedInfo = document.querySelector(".result__info.left");
// if this variable is trye only then the copyBtn will appear, i.e. when the user first click generate the copyBth will interact.
let generatedPassword = false;
// Update Css Props of the COPY button
// Getting the bounds of the result viewbox container
let resultContainerBound = {
left: resultContainer.getBoundingClientRect().left,
top: resultContainer.getBoundingClientRect().top,
};
// This will update the position of the copy button based on mouse Position
resultContainer.addEventListener("mousemove", e => {
resultContainerBound = {
left: resultContainer.getBoundingClientRect().left,
top: resultContainer.getBoundingClientRect().top,
};
if(generatedPassword){
copyBtn.style.opacity = '1';
copyBtn.style.pointerEvents = 'all';
copyBtn.style.setProperty("--x", `${e.x - resultContainerBound.left}px`);
copyBtn.style.setProperty("--y", `${e.y - resultContainerBound.top}px`);
}else{
copyBtn.style.opacity = '0';
copyBtn.style.pointerEvents = 'none';
}
});
window.addEventListener("resize", e => {
resultContainerBound = {
left: resultContainer.getBoundingClientRect().left,
top: resultContainer.getBoundingClientRect().top,
};
});
// Copy Password in clipboard
copyBtn.addEventListener("click", () => {
const textarea = document.createElement("textarea");
const password = resultEl.innerText;
if (!password || password == "CLICK GENERATE") {
return;
}
textarea.value = password;
document.body.appendChild(textarea);
textarea.select();
document.execCommand("copy");
textarea.remove();
copyInfo.style.transform = "translateY(200%)";
copyInfo.style.opacity = "0";
copiedInfo.style.transform = "translateY(0%)";
copiedInfo.style.opacity = "0.75";
});
// When Generate is clicked Password id generated.
generateBtn.addEventListener("click", () => {
const length = +lengthEl.value;
const hasLower = lowercaseEl.checked;
const hasUpper = uppercaseEl.checked;
const hasNumber = numberEl.checked;
const hasSymbol = symbolEl.checked;
generatedPassword = true;
resultEl.innerText = generatePassword(length, hasLower, hasUpper, hasNumber, hasSymbol);
copyInfo.style.transform = "translateY(0%)";
copyInfo.style.opacity = "0.75";
copiedInfo.style.transform = "translateY(200%)";
copiedInfo.style.opacity = "0";
});
// Function responsible to generate password and then returning it.
function generatePassword(length, lower, upper, number, symbol) {
let generatedPassword = "";
const typesCount = lower + upper + number + symbol;
const typesArr = [{ lower }, { upper }, { number }, { symbol }].filter(item => Object.values(item)[0]);
if (typesCount === 0) {
return "";
}
for (let i = 0; i < length; i++) {
typesArr.forEach(type => {
const funcName = Object.keys(type)[0];
generatedPassword += randomFunc[funcName]();
});
}
return generatedPassword.slice(0, length)
.split('').sort(() => Math.random() - 0.5)
.join('');
}
// function that handles the checkboxes state, so at least one needs to be selected. The last checkbox will be disabled.
function disableOnlyCheckbox(){
let totalChecked = [uppercaseEl, lowercaseEl, numberEl, symbolEl].filter(el => el.checked)
totalChecked.forEach(el => {
if(totalChecked.length == 1){
el.disabled = true;
}else{
el.disabled = false;
}
})
}
[uppercaseEl, lowercaseEl, numberEl, symbolEl].forEach(el => {
el.addEventListener('click', () => {
disableOnlyCheckbox()
})
})
If you want me to code any project or post any specific post, feel free to DM me at IG @code.scientist or @codingtorque
If you have any doubts or any project ideas feel free to Contact Us
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