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Determining Element CSS Display Status with JavaScript
In web development, it's often necessary to manipulate or verify the CSS properties of elements dynamically. One aspect that can be useful to check is an element's display status, particularly whether it's visible (display set to "block") or hidden (display set to "none").
Using JavaScript to Check Element Display
To check an element's CSS display property using JavaScript, you can utilize two primary methods:
1. Checking the Computed Style:
This method is suitable for elements whose display properties are inherited or specified in CSS rules. To obtain the computed style, you can use the following code:
const element = document.getElementById('element-id'); const computedStyle = window.getComputedStyle(element, null); const displayStyle = computedStyle.display;
2. Checking the Inline Style:
If the style was declared inline or with JavaScript, you can directly access the style property of the element as follows:
const element = document.getElementById('element-id'); const displayStyle = element.style.display;
Determining Display Status:
Once you have the displayStyle, you can use a conditional statement to determine if the element is visible or hidden:
if (displayStyle === 'block') { // Element is visible } else if (displayStyle === 'none') { // Element is hidden }
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