How can i have global alt tags in JavaScript

Question

I have realy many many images. All images have alt tag something like alt="img1"...

Is there any change hold value of the tag in variable? Something like

<script>
    const altVariable="img";
</script>

and then in HTML use this variable like alt="<script>altVariable</script>" ?

I now the line above is bull**** and doesnt works like this.

Answer 1

You can do that by javascript , if you want to set all images with the same alt.

const altVariable="img";
document.querySelectorAll('img').forEach(img => img.alt = altVariable);