Currently, I am using a Google Chrome Extension to apply an external theme to a website. Unfortunately, the logo on the site does not have an ID or class that can be used to call it. I am searching for a solution to replace it with a different image. My initial thought is to locate the image based on its size, but I am unsure of the next steps to take.
Assuming it is located inside a <div id="something">, you can target it using the following snippet:
$("#something img:first").attr('src', 'http://new.src/img.gif');
If you are familiar with the file name of the image you have linked, you can choose to select it using the contains selector.
Learn more about the attribute contains word selector here.
$("img[src~='cats.gif']");
Start by selecting a nearby element.
For example, if it is the third child of an element with the id example:
$("#example :nth-child(3)").attr('src', '...');
If the parent element does not have an ID, use the direct child selector. For instance, given the following HTML:
<div id="myDiv">
<div>blah</div>
<div><img src="..."/></div>
</div>
Your selector should be:
$("#myDiv > div:nth-child(2) > img");
To change the source of a specific image using jQuery, you can use the following syntax:
$("img:eq(1)").attr("src", "file.png");Keep in mind that the index for selecting elements with `eq()` is zero-based. As mentioned by waitinforatrain below, this aligns with how JavaScript arrays are indexed. According to the API documentation:
JavaScript arrays start counting from 0, hence the selectors in jQuery follow the same pattern. So when you use $('.myclass:eq(1)'), it will actually target the second element with the class myclass, not the first one. On the other hand, :nth-child(n) uses 1-based indexing as per CSS specifications.
For a more detailed explanation on the :eq selector, refer to the official JQuery API documentation here.
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