javascript - changing src after page load / is executable? -

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a. wondering how change src after page load using javascript

<img src="http://example.com/image.png" /> <img src="http://domain.com/different.jpg" />

b. second question follow - the new src of image (domain.com/different.jpg) displayed? execute new network request?

use jquery , write below code after document ready

a. $('img').attr('src','http://domain.com/different.jpg');

b. yes, image display , yes, execute new network request


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