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password strength checking #17

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password strength checking #17

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51 changes: 51 additions & 0 deletions app.js
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Original file line number Diff line number Diff line change
Expand Up @@ -9,3 +9,54 @@ sign_up_btn.addEventListener("click", () => {
sign_in_btn.addEventListener("click", () => {
container.classList.remove("sign-up-mode");
});
// checking strength of password

// Wait for DOM to load
document.addEventListener('DOMContentLoaded', function () {
// Select the sign-up password input field
const signupForm = document.querySelector('.sign-up-form');
const passwordField = signupForm.querySelector('input[type="password"]');

// Thia is to create feedback element
const strengthMsg = document.createElement('div');
strengthMsg.id = 'pwd-strength';
strengthMsg.style.marginTop = '8px';
strengthMsg.style.fontSize = '0.9em';
passwordField.parentElement.appendChild(strengthMsg);

passwordField.addEventListener('input', function () {
const value = passwordField.value;
strengthMsg.textContent = getStrengthText(value);
strengthMsg.style.color = getStrengthColor(value);
});

// Helper functions
function getStrengthText(pwd) {
if (pwd.length < 6) return "Too short";
let score = 0;
if (/[A-Z]/.test(pwd)) score++;
if (/[a-z]/.test(pwd)) score++;
if (/\d/.test(pwd)) score++;
if (/[\W_]/.test(pwd)) score++;
if (pwd.length >= 10) score++;
switch (score) {
case 0:
case 1: return "Very weak";
case 2: return "Weak";
case 3: return "Medium";
case 4: return "Strong";
case 5: return "Very strong";
default: return "Weak";
}
}
function getStrengthColor(pwd) {
let score = 0;
if (/[A-Z]/.test(pwd)) score++;
if (/[a-z]/.test(pwd)) score++;
if (/\d/.test(pwd)) score++;
if (/[\W_]/.test(pwd)) score++;
if (pwd.length >= 10) score++;
const colors = ['#e74c3c', '#e67e22', '#f1c40f', '#2ecc71', '#27ae60'];
return colors[Math.max(0, score - 1)];
}
});