![]() In my experience, though, as long as you're using this hook on smaller components that don't have a big DOM impact, you should be just fine. ![]() Use this hook in the small âleaf nodeâ components near the bottom of the tree.įor maximum performance, you can use a library like React Spring or Framer Motion, which will allow you to update values without triggering React renders. It shouldn't be used in a top-level component like App or Homepage, since that will cause a huge chunk of your React tree to re-render very often. let output document. We are displaying those mouse coordinates in the div element using the innerText property. In both the event handler functions, we are using pageX and pageY properties to get horizontal and vertical coordinates respectively. That said, you do still need to be a bit careful where you use this hook. We have attached click and mousemove event listeners to the document. ![]() pageX clientX + width of the scrolled-out horizontal part of the document. The two coordinate systems are connected by the formula: pageY clientY + height of the scrolled-out vertical part of the document. No matter how hard I tried, I couldn't come up with a contrived scenario where the throttle actually improved performance (while still updating often enough for smooth animations). Thereâs no standard method to get the document coordinates of an element. In testing, though, it seemed to make performance worse. JavaScript Getting Coordinates of mouse - To get the coordinates of mouse using JavaScript, the code is as follows Example Live Demo.Originally, this hook included âthrottleâ functionality, which would limit the updates to a user-specified interval. This can be dozens and dozens of times a second. Description: Display the current mouse coordinates (relative to the viewable window) in the status bar of your visitor's browser. This component will re-render whenever the user moves the mouse.
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