SOURCE

console 命令行工具 X clear

                    
>
console
const bubbleSort = (nums) => {
    for (var i = 0; i < nums.length - 1; i++) {
        for (var j = 0; j < nums.length - 1 - i; j++) {
            if (nums[j] > nums[j + 1]) {
                let tmp = nums[j];
                nums[j] = nums[j + 1];
                nums[j + 1] = tmp;
            }
        }
    }
    return nums;
}
const array = [5, 2, 4, 7, 9, 8, 3, 6, 3, 8, 3]
const bArray = bubbleSort(array)
console.log(bArray)

//-------------------------------------------------------------------
async function foo() {
    console.log(2);
    console.log(await Promise.resolve(8));
    console.log(9);
}
async function bar() {
    console.log(4);
    console.log(await 6);
    console.log(7); 
}
console.log(1);
foo();
console.log(3);
bar();
console.log(5);

//-------------------------------------------------------------------
async function sleep(delay) {
    return new Promise((resolve) => setTimeout(resolve, delay));
}
async function foo() {
    const t0 = Date.now();
    await sleep(1500); // 暂停约 1500 毫秒 console.log(Date.now() - t0);
}
foo();

//-------------------------------------------------------------------
var series = ['a1', 'a3', 'a3', 'a1', 'a5',  'a7', 'a1', 'a3', 'a4', 'a2', 'a1'];
var result= series.reduce(function (accumulator, current) {
    if (current in accumulator) {
        accumulator[current]++;
    }
    else {
        accumulator[current] = 1;
    }
    return accumulator;
}, {});
console.log(JSON.stringify(result));

//-------------------------------------------------------------------
var a = [1, 1, 2, 3, 4, 4, 5, 6, 6, 6, 7];
Array.prototype.duplicate = function() {
	return this.reduce(function(cal, cur) {
		if(cal.indexOf(cur) === -1) {
			cal.push(cur);
		}
		return cal;
	}, [])
}
var newArr = a.duplicate();
console.log(newArr);

//-------------------------------------------------------------------

for(var i=0; i<5; ++i){}
console.log(i)
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>webpack简介</title>
    <!-- <link rel="stylesheet" href="./index.less"> -->
</head>
<body>
    <h1 id="tittle">hello webpack</h1>
    <div></div>
</body> 
</html>
div {
 	position: absolute;
 	width: 300px;
 	height: 300px;
 	margin: auto;
 	top: 0;
 	left: 0;
 	bottom: 0;
 	right: 0;
 	background-color: pink;	/* 方便看效果 */
 }