正则函数
this.userInfo.mobile.match(/^1[1-9]{1}[0-9]{9}$/g) == null不足两位数补0
变量.toString().replace(/^(\d)$/,'0$1')
.toString().padStart(2, "0");时间
var myDate = new Date();
myDate.getYear(); //获取当前年份(2位)
myDate.getFullYear(); //获取完整的年份(4位,1970-????)
myDate.getMonth(); //获取当前月份(0-11,0代表1月)
myDate.getDate(); //获取当前日(1-31)
myDate.getDay(); //获取当前星期X(0-6,0代表星期天)
myDate.getTime(); //获取当前时间(从1970.1.1开始的毫秒数)
myDate.getHours(); //获取当前小时数(0-23)
myDate.getMinutes(); //获取当前分钟数(0-59)
myDate.getSeconds(); //获取当前秒数(0-59)
myDate.getMilliseconds(); //获取当前毫秒数(0-999)
myDate.toLocaleDateString(); //获取当前日期
var mytime=myDate.toLocaleTimeString(); //获取当前时间
myDate.toLocaleString( ); //获取日期与时间
// 获取当前时间戳(以s为单位)
var timestamp = Date.parse(new Date());
timestamp = timestamp / 1000;
//当前时间戳为：1403149534
console.log("当前时间戳为：" + timestamp);
// 获取某个时间格式的时间戳
var stringTime = "2014-07-10 10:21:12";
var timestamp2 = Date.parse(new Date(stringTime));
timestamp2 = timestamp2 / 1000;
//2014-07-10 10:21:12的时间戳为：1404958872
console.log(stringTime + "的时间戳为：" + timestamp2);
// 将当前时间换成时间格式字符串
var timestamp3 = 1403058804;
var newDate = new Date();
newDate.setTime(timestamp3 * 1000);
// Wed Jun 18 2014
console.log(newDate.toDateString());
// Wed, 18 Jun 2014 02:33:24 GMT
console.log(newDate.toGMTString());
// 2014-06-18T02:33:24.000Z
console.log(newDate.toISOString());
// 2014-06-18T02:33:24.000Z
console.log(newDate.toJSON());
// 2014年6月18日
console.log(newDate.toLocaleDateString());
// 2014年6月18日 上午10:33:24
console.log(newDate.toLocaleString());
// 上午10:33:24
console.log(newDate.toLocaleTimeString());
// Wed Jun 18 2014 10:33:24 GMT+0800 (中国标准时间)
console.log(newDate.toString());
// 10:33:24 GMT+0800 (中国标准时间)
console.log(newDate.toTimeString());
// Wed, 18 Jun 2014 02:33:24 GMT
console.log(newDate.toUTCString());js获取时间戳精确到秒
// 获取当前时间戳(以s为单位)
var timestamp = Date.parse(new Date()) / 1000;
//当前时间戳为：1403149534
console.log("当前时间戳为：" + timestamp);根据年份得到生肖
var index = year % 12
var animals = ["猴","鸡","狗","猪","鼠","牛","虎","兔","龙","蛇","马","羊"];
return animals[index];根据月份获取星座
var c1='0123' //获取文本框中的值
var month=c1.substring(0,2);
var day=parseInt(c1.substring(2));
var x = '';
switch(month){
case "01":
day > 19 ? x = '水瓶座' : x = '魔蝎座'
break;
case "02":
day > 18 ? x = '双鱼座' : x = '水瓶座'
break;
case "03":
day > 20 ? x = '白羊座' : x = '双鱼座'
break;
case "04":
day > 19 ? x = '金牛座' : x = '白羊座'
break;
case "05":
day > 20 ? x = '双子座' : x = '金牛座'
break;
case "06":
day > 21 ? x = '巨蟹座' : x = '双子座'
break;
case "07":
day > 22 ? x = '狮子座' : x = '巨蟹座'
break;
case "08":
day > 22 ? x = '处女座' : x = '狮子座'
break;
case "09":
day > 22 ? x = '天秤座' : x = '处女座'
break;
case "10":
day > 23 ? x = '天蝎座' : x = '天秤座'
break;
case "11":
day > 20 ? x = '射手座' : x = '天蝎座'
break;
case "12":
day > 21 ? x = '摩羯座' : x = '射手座'
break;
}
console.log(x,new Date())从字符串中获取生日 （支持 1999 1 1）
#支持 19990101 1999 01 01 1999-01-01
#支持 1999-1-1 1999 1 1 1999-1-1
#不支持 199911
var date = 19990101
var birthday = date.match(/^(\d{4}).{1}(\d{1,2}).{1}(\d{1,2}$)/);
var year = birthday[1]
var month = birthday[2].toString().padStart(2, "0");
var day = birthday[3].toString().padStart(2, "0");
console.log(year,month,day)base64 图片旋转
#src = bast64Data
rotateBase64Img(src,edg = 270) {
var that = this
var imageurl = ''
var canvas = document.createElement("canvas");
var ctx = canvas.getContext("2d");
var imgW;//图片宽度
var imgH;//图片高度
var size;//canvas初始大小
if (edg % 90 != 0) {
console.error("旋转角度必须是90的倍数!");
throw '旋转角度必须是90的倍数!';
}
(edg < 0) && (edg = (edg % 360) + 360)
const quadrant = (edg / 90) % 4; //旋转象限
const cutCoor = {sx: 0, sy: 0, ex: 0, ey: 0}; //裁剪坐标
var image = new Image();
image.crossOrigin = "anonymous"
image.src = src;
image.onload = function () {
imgW = image.width;
imgH = image.height;
size = imgW > imgH ? imgW : imgH;
canvas.width = size * 2;
canvas.height = size * 2;
switch (quadrant) {
case 0:
cutCoor.sx = size;
cutCoor.sy = size;
cutCoor.ex = size + imgW;
cutCoor.ey = size + imgH;
break;
case 1:
cutCoor.sx = size - imgH;
cutCoor.sy = size;
cutCoor.ex = size;
cutCoor.ey = size + imgW;
break;
case 2:
cutCoor.sx = size - imgW;
cutCoor.sy = size - imgH;
cutCoor.ex = size;
cutCoor.ey = size;
break;
case 3:
cutCoor.sx = size;
cutCoor.sy = size - imgW;
cutCoor.ex = size + imgH;
cutCoor.ey = size + imgW;
break;
}
ctx.translate(size, size);
ctx.rotate(edg * Math.PI / 180);
ctx.drawImage(image, 0, 0);
var imgData = ctx.getImageData(cutCoor.sx, cutCoor.sy, cutCoor.ex, cutCoor.ey);
if (quadrant % 2 == 0) {
canvas.width = imgW;
canvas.height = imgH;
} else {
canvas.width = imgH;
canvas.height = imgW;
}
ctx.putImageData(imgData, 0, 0);
that.bast64img(canvas.toDataURL())
// console.log('im',imageurl)
}
// console.log('image',imageurl)
// return imageurl
},
bast64img(data){
console.log('bast',data)
// this.imageurl = data
this.$emit('getImg', data)
console.log(data, '148')
uni.setStorageSync('tempFilePath',data)
console.log(uni.getStorageSync('tempFilePath'));
uni.navigateTo({
url: '/minePages/Singlecommitment'
})
}
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