wander555

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wander555 / getServerDate.js

Last active January 16, 2023 02:47

获取服务器的时间

	function getServerDate() {
	let date = null;
	try {
	let xhr = new XMLHttpRequest();
	if (!xhr) {
	xhr = new ActiveXObject('Microsoft.XMLHTTP');
	}
	xhr.open('HEAD', '/', false);
	xhr.send(null);
	const nowDate = xhr.getResponseHeader('Date');

wander555 / stream.java

Last active November 10, 2022 07:07

java8 stream #stream

	//去重
	List<OnlineFactor> finalList = factorList.stream().collect(Collectors.collectingAndThen(Collectors.toCollection(() -> new TreeSet<>(Comparator.comparing(x -> x.getName() + x.getCode()))), ArrayList::new));

wander555 / es6.js

Last active January 3, 2023 03:17

JS关键代码 #es6 #js

	//数组去重
	const uniqueArr = (arr) => [...new Set(arr)];
	console.log(uniqueArr(["前端","js","html","js","css","html"]));

	//两日期之间相差的天数
	const dayDiff = (date1, date2) => Math.ceil(Math.abs(date1.getTime() - date2.getTime()) / 86400000);
	dayDiff(new Date("2021-10-21"), new Date("2022-02-12"))

	//判断数组是否为空
	const isNotEmpty = arr => Array.isArray(arr) && arr.length > 0;