日期转化
//数据转化
function formatNumber(n) {
n = n.toString()
return n[1] ? n : '0' + n
}
/**
* 时间戳转化为年 月 日 时 分 秒
* number: 传入时间戳
* format：返回格式，支持自定义，但参数必须与formateArr里保持一致
*/
function formatTime(number, format) {
var format;
var formateArr = ['Y', 'M', 'D', 'h', 'm', 's'];
var returnArr = [];
if (!format) {
// 是否是今天
if (new Date(parseFloat(number) * 1000).toDateString() === new Date().toDateString()) {
format = 'h:m'
} else if (new Date(parseFloat(number) * 1000).getFullYear() === new Date().getFullYear()) {
// 是否是今年
format = 'M-D'
} else {
// 今年以前
format = 'Y-M-D'
}
}
var date = new Date(number * 1000);
returnArr.push(date.getFullYear());
returnArr.push(formatNumber(date.getMonth() + 1));
returnArr.push(formatNumber(date.getDate()));
returnArr.push(formatNumber(date.getHours()));
returnArr.push(formatNumber(date.getMinutes()));
returnArr.push(formatNumber(date.getSeconds()));
for (var i in returnArr) {
format = format.replace(formateArr[i], returnArr[i]);
}
return format;
}
将大数字格式化
/**
* 将大数字格式化 例：N万 N亿 保留小数点后一位(方式为截取)
* @param arg string/int 原始数据
* @returns {*}
*/
function beautifyNumber(arg) {
if (arg === undefined || arg === null || arg === "") {
console.error("参数不能为空");
return ""
}
var strArg = arg + "";
var length = strArg.length;
if (length <= 0) {
return ""
}
if (length < 5) {
return strArg
}
if (length < 6) {
return strArg.substring(0, length - 4) + "." + strArg.substring(length - 4, length - 3) + "W"
}
if (length >= 6) {
// return strArg.substring(0, length - 8) + "." + strArg.substring(length - 8, length - 7) + "亿"
return "10W+"
}
return arg;
}
移动端自适应rem
<script>
/* rem自适应脚本
* @param designWidth 设计稿页面宽度
*/
;
(function (designWidth) {
var docEle = document.documentElement;
var scale = 1;
var viewportContent =
"width=device-width,initial-scale=" +
scale +
",maximum-scale=" +
scale +
",user-scalable=no";
var meta = document.querySelector("meta[name=viewport]");
if (meta) {
meta.setAttribute("content", viewportContent);
} else {
meta = document.createElement("mata");
meta.setAttribute("name", "viewport");
meta.setAttribute("content", viewportContent);
if (docEle.firstElementChild) {
//<head>
docEle.firstElementChild.appendChild(meta);
} else {
var head = document.createElement("head");
head.autocapitalize(meta);
docEle.appendChild(head);
}
}
//设置font-size
docEle.style.fontSize = (docEle.clientWidth / designWidth) * 16 + "px";
})(375);
</script>
