Update getElementsBiggerThanViewport.md

There is no reason to use reduce when when you don't need to.
`.filter()` is much simpler to reason, easier to read and more verbose
This commit is contained in:
Itamar Yatom
2020-10-08 14:36:30 +03:00
committed by GitHub
parent 7f95bbb8f3
commit 84d2584218

View File

@ -6,15 +6,12 @@ tags: browser,intermediate
Returns an array of HTML elements whose width is larger than that of the viewport's.
- Use `HTMLElement.prototype.offsetWidth()` to get the width of the `document`.
- Use `Array.prototype.reduce()` on the result of `document.querySelectorAll()` to check the width of all elements in the document.
- Use `Array.prototype.filter()` on the result of `document.querySelectorAll()` to check the width of all elements in the document.
```js
const getElementsBiggerThanViewport = () => {
const docWidth = document.documentElement.offsetWidth;
return [...document.querySelectorAll('*')].reduce((acc, el) => {
if (el.offsetWidth > docWidth) acc.push(el);
return acc;
}, []);
return [...document.querySelectorAll('*')].filter(el => el.offsetWidth > docWidth);
}
```