SOURCE

let array = [6,1,2,7,9,3,4,5,10,8];

function quickSort(arr, left, right) {
	
	if (left > right) {
		return;
	}
	
	let pointVal = arr[left];
  	let pointIdx = left;
  	let i = left;
  	let j = right;
  	
	while(i !== j) {
		
		while(i < j && arr[j] >= pointVal) {
			j--;
		}
		
		while(i < j && arr[i] <= pointVal) {
			i++;
		}
		
		if (i < j) {
			let temp = arr[j];
			arr[j] = arr[i];
			arr[i] = temp;
		}
  	}
	
	arr[pointIdx] = arr[i];
	arr[i] = pointVal;
	pointIdx = i;
	
	quickSort(arr, left, pointIdx -1);
	quickSort(arr, pointIdx + 1, right);
}

function main() {
	document.getElementById('sort').onclick = function() {
		quickSort(array, 0, array.length -1);
		document.getElementById('result').innerHTML = array.join(' ');
	}
}

main();

<div>待排序：</div>
<div>6,1,2,7,9,3,4,5,10,8</div>
<div>排序结果：</div>
<div id="result"></div>
<button id="sort">开始排序</button>