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14 sty 2009 · To retrieve the position relative to the page efficiently, and without using a recursive function: (includes IE also) var element = document.getElementById('elementId'); //replace elementId with your element's Id. var rect = element.getBoundingClientRect(); var elementLeft,elementTop; //x and y.
5 kwi 2023 · You can use the element.getBoundingClientRect () function to measure the position of an element in JavaScript. This function returns an object with eight properties: top, right, bottom, left, x, y, width, and height. These properties tell you the position and size of the element relative to the viewport:
The offsetTop property returns the top position (in pixels) relative to the parent. The returned value includes: the top position, and margin of the element; the top padding, scrollbar and border of the parent; The offsetTop property is read-only.
2 lut 2024 · Use the Element.getBoundingClientRect() Function to Get the Position of an Element in JavaScript. Use the offsetTop Property to Get the Position of an Element in JavaScript. Every element in the HTML document is placed at a given position. The position here refers to the x and y coordinates of elements.
26 mar 2022 · We can use the getBoundingClientRect method to get an element’s position relative to its viewport. For instance, we can write: const div = document.querySelector('div') const { top: t, left: l } = div.getBoundingClientRect(); console.log(t, l)
26 lip 2024 · In more technical terms, scrollY returns the Y coordinate of the top edge of the current viewport. If the document isn't scrolled at all top or down, then scrollY is 0. If there is no viewport, the returned value is 0.
25 cze 2012 · You can use standard javascript: window.scroll(x, y). This should work pretty well considering that you'll be doing this at onload, i.e. the window should begin at (0, 0). Play around with (x, y) until you get your header to the position that you're happy with. Naturally you'll need to change it anytime the header moves. Example: