Created
August 5, 2021 20:28
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Problem Statement: Write a Program to display an image after a defined set of time, using Promise where you will set the timeOut of the Image.
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| <!DOCTYPE html> | |
| <html lang="en"> | |
| <head> | |
| <meta charset="UTF-8" /> | |
| <meta http-equiv="X-UA-Compatible" content="IE=edge" /> | |
| <meta name="viewport" content="width=device-width, initial-scale=1.0" /> | |
| <title>Sample Program to Render Image after a defined Time</title> | |
| </head> | |
| <body> | |
| <h1>Render Image after a defined Time</h1> | |
| <img id="hello" /> | |
| <script type="text/javascript"> | |
| function randomNumber(max) { | |
| return Math.floor(Math.random() * max) + 1; | |
| } | |
| function loadImg() { | |
| console.log('Loading'); | |
| return new Promise(function (resolve, reject) { | |
| resolve({ | |
| img: 'https://picsum.photos/500/300?random=' + randomNumber(100), | |
| timeOut: randomNumber(5000), | |
| }); | |
| }); | |
| } | |
| let time = 100; | |
| function repeatingFunc() { | |
| loadImg().then((res) => { | |
| let imgTag = document.querySelector('#hello'); | |
| imgTag.setAttribute('src', res.img); | |
| document.body.appendChild(imgTag); | |
| console.log( | |
| `It's been ${Math.floor( | |
| time / 60 | |
| )} seconds. Execute the function again.` | |
| ); | |
| time = res.timeOut; | |
| }); | |
| setTimeout(repeatingFunc, time); | |
| } | |
| setTimeout(repeatingFunc, time); | |
| </script> | |
| </body> | |
| </html> |
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