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La proprietà a sola lettura
HTMLElement.offsetWidth restituisce la larghezza del layout di un elemento. In genere, l'offsetWidth di un elemento è la misura che include i bordi degli elementi, l'elemento di riempimento orizzontale, l'elemento scrollbar verticale (se presente) e l'elemento CSS "width".Syntax
var offsetWidth =element.offsetWidth;
offsetWidth is a read-only property.
This property will round the value to an integer. If you need a fractional value, use element.getBoundingClientRect().
Example
Specification
| Specification | Status | Comment |
|---|---|---|
| CSS Object Model (CSSOM) View Module The definition of 'offsetWidth' in that specification. |
Working Draft |
Notes
offsetWidth is a property of the DHTML object model which was first introduced by MSIE. It is sometimes referred to as an element's physical/graphical dimensions, or an element's border-box width.
Browser compatibility
Update compatibility data on GitHub
| Desktop | Mobile | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Basic support | Chrome ? | Edge Full support Yes | Firefox Full support 1 | IE Full support Yes | Opera ? | Safari ? | WebView Android Full support Yes | Chrome Android Full support Yes | Edge Mobile Full support Yes | Firefox Android Full support 4 | Opera Android ? | Safari iOS ? | Samsung Internet Android ? |
Legend
- Full support
- Full support
- Compatibility unknown
- Compatibility unknown
- Experimental. Expect behavior to change in the future.
- Experimental. Expect behavior to change in the future.
See also
Element.clientWidthElement.scrollWidth- Determining the dimensions of elements
- MSDN Measuring Element Dimension and Location
Tag del documento e collaboratori
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SphinxKnight,
kerby58
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SphinxKnight,