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Can JavaScript Get Mouse Position After Page Load Without User Movement?

Barbara Streisand
Release: 2024-10-23 16:45:02
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Can JavaScript Get Mouse Position After Page Load Without User Movement?

Retrieving Mouse Position Post-Load Without Movement (JavaScript)

Can JavaScript obtain the mouse position after page load without any mouse movement triggering an event?

Answer:

Ordinarily, JavaScript cannot capture the mouse position in the absence of mouse movement events. However, there exists a roundabout method.

Method:

  1. Overlay the page with a transparent div covering the entire document.
  2. Populate the div with numerous (e.g., 2,000 x 2,000) elements, each sized at 1 pixel.
  3. Implement a CSS :hover rule for these elements, modifying a style property (e.g., font-family).
  4. Upon page load, iterate through all elements and check their currentStyle or getComputedStyle() until an element with the modified font property is found.
  5. Extrapolate back from this element to determine its coordinates within the document.

Caution:

It is strongly advised against employing this method due to its impracticality and potential performance impact.

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