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- <!DOCTYPE html>
- <html>
- <style>
- #myProgress {
- width: 100%;
- background-color: #ddd;
- }
- #myBar {
- width: 1%;
- height: 30px;
- background-color: #4CAF50;
- }
- </style>
- <body>
- <h1>JavaScript Progress Bar</h1>
- <div id="myProgress">
- <div id="myBar"></div>
- </div>
- <br>
- <button onclick="move()">Click Me</button>
- <script>
- window.onload = function() {
- checkStatus();
- };
- var id;
- var width;
- function move() {
- var elem = document.getElementById("myBar");
- id = setInterval(frame, 40);
- var currentValue = localStorage.getItem('progressValue');
- var currentStatus = localStorage.getItem('buttonState');
- width = 1;
- if (currentValue) {
- if (currentStatus==='running') {
- width = currentValue;
- }
- }
- function frame() {
- if (width >= 100) {
- clearInterval(id);
- localStorage.setItem('buttonState', 'stop');
- } else {
- localStorage.setItem('progressValue', width);
- localStorage.setItem('buttonState', 'running');
- width++;
- elem.style.width = width + '%';
- }
- }
- }
- function checkStatus(){
- var progressStatus = localStorage.getItem('buttonState');
- if (progressStatus==='running') {
- move();
- } else {
- localStorage.setItem('buttonState', 'stop');
- }
- }
- </script>
- </body>
- </html>
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