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| // assuming el is dom object | |
| function checkVisible(el) | |
| { | |
| return el.offsetTop < window.innerHeight + window.pageYOffset | |
| } |
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| const quickSort = list => { | |
| if (list.length < 2) | |
| return list; | |
| let pivot = list[0]; | |
| let left = []; | |
| let right = []; | |
| for (let i = 1, total = list.length; i < total; i++){ | |
| if (list[i] < pivot) | |
| left.push(list[i]); | |
| else |
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| /(.*?)/g | |
| // (.*?) is ungreedy |
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