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JavaScript

Steven Golden
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Steven Golden
Front End Web Development Techdegree Graduate 25,255 Points
Posted by Steven Golden
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Steven Golden
Front End Web Development Techdegree Graduate 25,255 Points

Interactive Media Player-Selecting the correct element

Trying to get the value of aria-valuenow:

<span class="mejs__time-total mejs__time-slider" role="slider" tabindex="0" aria-label="Time Slider" aria-valuemin="0" aria-valuemax="59.861333" aria-valuenow="8.180167" aria-valuetext="00:08">

My code is: const videoTimer = document.querySelector('.mejs__time-total[aria-valuenow]'); const videoTime = videoTimer.value;

I get the error in the console: Uncaught TypeError: Cannot read property 'value' of null

I am not sure why I am having trouble with selecting elementmediaplayer.js element.

1 Answer

Steven Parker
Steven Parker
225,664 Points
Steven Parker
Steven Parker
225,664 Points

The cause of that error is unclear.

The message would seem to indicate that the querySelector call was unable to find the target element, but the selector seems to match the span in your HTML snippet. Perhaps it would help if you show the complete code or provide a link to a snapshot of your workspace.

But even without the error, I'm not sure this would do what you want. To get the value of aria-valuenow, try this:

const videoTime = videoTimer.getAttribute("aria-valuenow");