TechVolatile

Here is the way .... 1. 2. Keep the file on Python Folder. 3. Type http://localhost:8000 on your browser 4. Surf on local machine

So here's my answer: $(function() { $('img').attr('src', 'http://placepuppy.it/350/150'); }) I'm simply starting with the jQuery object and passing it an anonymous function. The anonymous function changes the  src  of the one  img  on the page to the URL provided. (Remember, $('img')  grabs  all  of the images on the page, so this is a  very bad  selector. It works in this case because there's only one  , but normally you should use a much more specific selector.) If I hadn't wrapped my  .attr()  function in the jQuery object, it would run as soon as it's loaded in the  of the document, which occurs before the   tag appears on the page. So nothing would happen. But by wrapping it up in the jQuery object, it runs when the DOM is ready and I get to see a cute puppy instead! Source