免费的HTTP接口代理:
1.让不支持跨域的远程数据接口支持跨域。
2.让不支持JSONP的远程数据接口支持JSONP(添加参数&callback=cb_name)。
3.提供专业的HTTPS解决方案，让数据传输更安全(同时解决远程数据接口不支持HTTPS的问题)。
4.多种数据请求方式与返回格式。
5.丰富的数据接口 ...

使用：
https://bird.ioliu.cn/v1/?url=链接
url后面拼接你想要跨域的链接

链接：https://bird.ioliu.cn/

报错：Uncaught SyntaxError: missing ) after argument list
如果有动态数据写入的话，请注意转义动态数据
转义符"\'"或者"\""
eg:<p class="get_letter" onclick="jumpPage(\'' + value.src + '\');">获取感谢函</p>

链接：https://www.cnblogs.com/wx-ym-good/p/6702890.html

/* 生成图片 */
function greatCanvas(el, imgSrc, state) {
    html2canvas(document.querySelector(el), { background: null, useCORS: true }).then(function (canvas) {
        download(canvas.toDataURL("image/png"));   //调用下载方法
        $(imgSrc).attr("src", canvas.toDataURL("image/png"));
        $(state).css("z-index", "-1");
        hideLoading();
    });
}

/* 下载方法 */
function download(imgData) {
    downloadFile('Invitation.png', imgData);
}
function downloadFile(fileName, content) {
    let aLink = document.createElement('a');
    let blob = this.base64ToBlob(content);

    let evt = document.createEvent("HTMLEvents");
    evt.initEvent("click", true, true);
    aLink.download = fileName;
    aLink.href = URL.createObjectURL(blob);
    aLink.click()
}
function base64ToBlob(code) {
    let parts = code.split(';base64,');
    let contentType = parts[0].split(':')[1];
    let raw = window.atob(parts[1]);
    let rawLength = raw.length;

    let uInt8Array = new Uint8Array(rawLength);

    for (let i = 0; i < rawLength; ++i) {
        uInt8Array[i] = raw.charCodeAt(i);
    }
    return new Blob([uInt8Array], { type: contentType });
}

var u = navigator.userAgent;
var isAndroid = u.indexOf('Android') > -1 || u.indexOf('Adr') > -1;
var isiOS = !!u.match(/\(i[^;]+;( U;)? CPU.+Mac OS X/);
if (isiOS == true) {
	$("input,select").blur(function () {
		setTimeout(function () {
			var scrollHeight = document.documentElement.scrollTop || document.body.scrollTop || 0;
			window.scrollTo(0, Math.max(scrollHeight - 1, 0));
		}, 100);
	});
} else if (isAndroid == true) {
	var jh = $(window).height();
	$(window).resize(function () {
		var thisHeight = $(this).height();
		if (jh - thisHeight > 50) {
			$('body').css('height', jh + 'px');
		} else {
			$('body').css('height', '100%');
		}
	});
}

(function rotate() {
	var orientation = window.orientation;
	var pd = null;
	function createPd() {
		if (document.getElementById('preventTran') === null) {
			var imgData = '提示图片';
			pd = document.createElement('div');
			pd.setAttribute('id', 'preventTran');
			pd.style.position = 'fixed';
			pd.style.left = '0';
			pd.style.top = '0';
			pd.style.width = '100%';
			pd.style.height = '100%';
			pd.style.overflow = 'hidden';
			pd.style.backgroundColor = '#0090da';
			pd.style.textAlign = 'center';
			pd.style.zIndex = '99999';
			document.getElementsByTagName('body')[0].appendChild(pd);
			var img = document.createElement('img');
			img.src = imgData;
			pd.appendChild(img);
			img.style.margin = '60px auto 30px'
			var br = document.createElement('br');
			var p = document.createElement('p');
			p.style.width = '100%';
			p.style.height = 'auto';
			p.style.fontSize = '22px';
			p.style.color = '#fff';
			p.style.fontWeight = 'bold';
			p.style.lineHeight = '34px';
			p.style.textAlign = 'center';
			p.innerHTML = '为了您的良好体验';
			p.appendChild(br);
			p.innerHTML += '请将手机/平板竖屏操作';
			pd.appendChild(p);
		}
	}
	if (orientation == 90 || orientation == -90) {
		if (pd == null && document.getElementById('preventTran') === null) createPd();
		document.getElementById('preventTran').style.display = 'block';
	}
	window.onorientationchange = function () {
		if (pd == null && document.getElementById('preventTran') == null) createPd();
		document.getElementById('preventTran').style.display = 'none';
		rotate();
	};
})();

html:
<input type="text" placeholder="请输入ISP密码" class="ispPsd">
<i class="fa fa-eye-slash eyes" aria-hidden="true"></i>

js:
/* 密码变星号 */
var psdStr = ""
$(".ispPsd").keyup(function () {
    value = $(this).val();
    if (value.length >= psdStr.length) {
        psdStr += value.substr(psdStr.length, value.length - psdStr.length);
    }
    else {
        psdStr = psdStr.substr(0, value.length);
    }
    if ($(".eyes").hasClass("fa-eye-slash")) {
        $(this).val(value.replace(/./g, "*"));
    } else {
        $(this).val(value);
    }
});

/* 密码明文 */
$(".eyes").on("click", function () {
    if ($(this).hasClass("fa-eye-slash")) {
        $(".eyes").removeClass("fa-eye-slash");
        $(".eyes").addClass("fa-eye");
        $(".ispPsd").val(psdStr);
    } else if ($(this).hasClass("fa-eye")) {
        $(".eyes").removeClass("fa-eye");
        $(".eyes").addClass("fa-eye-slash");
        $(".ispPsd").val(value.replace(/./g, "*"));
    }
});

1.时间戳转yyyy-mm-dd-hh-mm-ss格式
方法一：
function dateInit(fmt, date) {
   var o = {
      "M+": date.getMonth() + 1,           //月份   
      "d+": date.getDate(),                //日   
      "h+": date.getHours(),               //小时   
      "m+": date.getMinutes(),             //分   
      "s+": date.getSeconds(),             //秒   
      "q+": Math.floor((date.getMonth() + 3) / 3),  //季度   
      "S": date.getMilliseconds()          //毫秒   
   };
   if (/(y+)/.test(fmt)) {
      fmt = fmt.replace(RegExp.$1, (date.getFullYear() + "").substr(4 - RegExp.$1.length));
   }
   for (var k in o) {
      if (new RegExp("(" + k + ")").test(fmt)) {
         fmt = fmt.replace(RegExp.$1, (RegExp.$1.length == 1) ? (o[k]) : (("00" + o[k]).substr(("" + o[k]).length)));
      }
   }
   return fmt;
}

dateInit("yyyy-MM-dd hh:mm:ss",new Date(时间戳));

方法二：
function time(time = +new Date()) {
    var date = new Date(time + 8 * 3600 * 1000);
    return date.toJSON().substr(0, 19).replace('T', ' ');
}

2.yyyy-mm-dd-hh-mm-ss转年月日格式
function formatDate(str) {
	var reg = /(\d{4})\-(\d{2})\-(\d{2})/;
	var date = str.replace(reg, "$1年$2月$3日").substr(0, 11);
	return date;
}

方法三：
function transferTimeFormat(timeVal) {
   date = new Date(timeVal)
   y = 1900 + date.getYear()
   m = '0' + (date.getMonth() + 1)
   d = '0' + date.getDate()
   h = '0' + date.getHours()
   mm = '0' + date.getMinutes()
   s = '0' + date.getSeconds()
   date = y + '-' + m.substring(m.length - 2, m.length) + '-' + d.substring(d.length - 2, d.length) + " " + h.substring(h.length - 2, h.length) + ':' + mm.substring(mm.length - 2, mm.length) + ':' + s.substring(s.length - 2, s.length)
   return date;
}

转为时间戳：
new Date($("#time").val()).getTime();

/* 公司对应的code */
var selVal = {
    "1234": "A公司",
    "5678": "B公司"
};

方法一：（不支持IE浏览器）
var key_arr = Object.keys(selVal);
var value_arr = Object.values(selVal);
function companyTxt(txt) {
    return value_arr[key_arr.indexOf(txt)];
}
function codeTxt(txt) {
    return key_arr[value_arr.indexOf(txt)];
}

方法二：
function companyTxt(selCode) {
    for (var prop in selVal) {
        if (prop == selCode) {
            return selVal[prop];
        }
    }
}
function codeTxt(selTxt) {
    for (var prop in selVal) {
        if (selVal[prop] == selTxt) {
            return prop;
        }
    }
}

方法三：
sessionStorage.setItem("list", JSON.stringify(res.companys.list));

 /* 获取公司编号 */
var companyCode = '';
function codeTxt(companyAll, companyVal) {
    $.each(companyAll, function (i, v) {
        if (companyVal == v.name) {
            companyCode = v.companyCode;
        }
    })
}

var list = JSON.parse(sessionStorage.getItem("list"));
var companyVal = $(".companyVal").val();
codeTxt(list, companyVal);

html:
<div class="swiper-container">
    <div class="swiper-wrapper swiperImg"></div>
</div>

js:
/* 图片路径 */
var imgUrlArr = ['images/swiperimg1.jpg']   

/* swiper-slide拼接方法 */
imgShow(imgUrlArr);   
function imgShow(url) {
    var picUrl = "";
    $.each(url, function (i, val) {
        picUrl += '<div class="swiper-slide"><img src="' + val + '"/ class="whImg"></div>';
    });
    $(".swiperImg").html(picUrl);
}

/* swiper配置 */
var myContainer = new Swiper('.swiper-container', {
    observer: true,
    observeParents: true,
});

1.引入appbridge.js
2.点击事件里调用
    var shareTitle = "";
    var shareContent = "";
    var shareUrl = "";
    var shareIcon = "";
    appBridge.openShare(shareTitle, shareContent, shareUrl, shareIcon);