How to Find the Highest z-index Value in a Set of jQuery Elements?

Finding the Highest z-Index Using jQuery

Question:

How can I obtain the highest z-index value among multiple div elements using jQuery?

Issue:

Using parseInt($("div").css("zIndex")) may yield an inaccurate result due to the potential presence of statically positioned elements that lack a z-index.

Answer:

Important Note:

z-index only applies to positioned elements, excluding those with position: static.

Optimal Approach:

<code class="javascript">var index_highest = 0;   
// Use a class selector to target specific divs or `div` for all divs
$("#layer-1,#layer-2,#layer-3,#layer-4").each(function() {
    // Use parseInt with radix to handle non-integer string values
    var index_current = parseInt($(this).css("zIndex"), 10);
    if(index_current > index_highest) {
        index_highest = index_current;
    }
});</code>

Explanation:

This code iterates through the specified div elements and compares their z-index values. It keeps track of the highest z-index encountered and ultimately returns that value.

Alternative Approach:

If targeting specific divs with a custom class:

<code class="javascript">// Assuming a class exists for the divs
$(".div-class").each(function() {
    // ...
});</code>

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