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Element size and scrolling #433
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,7 +1,7 @@ | ||
| The solution is: | ||
| La solución es: | ||
|
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| ```js | ||
| let scrollBottom = elem.scrollHeight - elem.scrollTop - elem.clientHeight; | ||
| ``` | ||
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| In other words: (full height) minus (scrolled out top part) minus (visible part) -- that's exactly the scrolled out bottom part. | ||
| En otras palabras: (altura total) menos (parte superior desplazada) menos (parte visible) -- esa es exactamente la parte inferior desplazada. |
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,6 +1,6 @@ | ||
| Differences: | ||
| Diferencias: | ||
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| 1. `clientWidth` is numeric, while `getComputedStyle(elem).width` returns a string with `px` at the end. | ||
| 2. `getComputedStyle` may return non-numeric width like `"auto"` for an inline element. | ||
| 3. `clientWidth` is the inner content area of the element plus paddings, while CSS width (with standard `box-sizing`) is the inner content area *without paddings*. | ||
| 4. If there's a scrollbar and the browser reserves the space for it, some browser substract that space from CSS width (cause it's not available for content any more), and some do not. The `clientWidth` property is always the same: scrollbar size is substracted if reserved. | ||
| 1. `clientWidth` es numérico, mientras `getComputedStyle(elem).width` retorna una cadena con `px` en el final. | ||
| 2. `getComputedStyle` puede devolver un ancho no numérico como `"auto"` para un elemento en linea. | ||
| 3. `clientWidth` es el contenido interior del área del elemento más los rellenos, mientras el ancho de CSS (con el estándar `box-sizing`) es el contenido interior del área *sin rellenos*. | ||
| 4. Si hay una barra de desplazamiento y el navegador reserva espacio para esta, algunos navegadores restan ese espacio del ancho de CSS (por que no está disponible para el contenido), y otros no. La propiedad `clientWidth` es siempre la misma: el tamaño de la barra de desplazamiento se resta si está reservado. | ||
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