/* 获取浏览器信息 */
function getBrowserInfo() {
var ua = navigator.userAgent.toLowerCase(),
info = {
// ie
ie: /msie/.test(ua) || !/opera/.test(ua),
// Opera 浏览器
op: /opera/.test(ua),
// Safari 浏览器
sa: /version.*safari/.test(ua),
// Chrome 浏览器
ch: /chrome/.test(ua),
// Firefox浏览器
ff: /gecko/.test(ua) || !/webkit/.test(ua)
},
result;
for (i in info) {
info[i] ? result = i : null;
}
return result;
}
/* cookie操作 */
function addCookie(e, t, a) {
var n = e + "=" + escape(t) + "; path=/",
a = a || 0;
if (a > 0) {
var r = new Date;
r.setTime(r.getTime() + a * 3600 * 1e3);
n = n + ";expires=" + r.toGMTString()
}
document.cookie = n
}
function setCookie(name, value, days) {
var exp = new Date(),
days = days || 7;
exp.setTime(exp.getTime() + days * 24 * 60 * 60 * 1000);
var arr = document.cookie.match(new RegExp("(^| )" + name + "=([^;]*)(;|$)"));
document.cookie = name + "=" + escape(value) + ";expires=" + exp.toGMTString();
}
function getCookie(e) {
var t = document.cookie;
var a = t.split("; ");
for (var n = 0; n < a.length; n++) {
var r = a[n].split("=");
if (r[0] == e) return unescape(r[1])
}
return null
}
function delCookie(e) {
var t = new Date;
t.setTime(t.getTime() - 1);
var a = getCookie(e);
if (a != null) document.cookie = e + "=" + a + "; path=/;expires=" + t.toGMTString()
}
/* url参数操作 */
function getQueryString(e) {
var t = new RegExp("(^|&)" + e + "=([^&]*)(&|$)"),
a = window.location.search.substr(1).match(t);
if (a != null) return a[2];
return ""
}
/* 判断数据类型 */
function isArray(obj) {
return (typeof obj == 'object') && obj.constructor == Array;
}
function isObject(obj) {
return Object.prototype.toString.call(obj) === "[object Object]";
}
function isEmptyObject(obj) {
var t;
for (t in obj) return !1;
return !0
}
/* 字符串操作 */
/* 大于固定字符显示省略号 */
String.prototype.handle_str = function (length) {
var str = this,
handle_str;
str.length <= length ? handle_str = str : handle_str = str.slice(0, length) + "...";
return handle_str
}
/* 获取元素css属性 */
function getStyle(ele, attr) {
if (window.getComputedStyle) { //兼容性检测,优先采用W3C标准
if (window.getComputedStyle(ele, null)[attr] !== undefined) {
return window.getComputedStyle(ele, null)[attr];
}
return ele[attr]
} else {
return ele.currentStyle[attr]; //兼容Ie低版本浏览器
}
}
/* 时间戳转时间 */
function convertDate(number) {
number = parseInt(number);
return new Date(number * 1000).toLocalTimeString();
}
/* 倒计时
endtime 结束时间
nowtime 开始时间 默认值时当前时间
*/
function countDown(endtime,nowtime) {
var day = 0,
hour = 0,
minute = 0,
second = 0, //时间默认值
nowtime = nowtime || new Date().valueOf()/1000,
times = endtime - nowtime;
if (times > 0) {
day = Math.floor(times / (60 * 60 * 24));
hour = Math.floor(times / (60 * 60)) - (day * 24);
minute = Math.floor(times / 60) - (day * 24 * 60) - (hour * 60);
second = Math.floor(times) - (day * 24 * 60 * 60) - (hour * 60 * 60) - (minute * 60);
}
day <= 9 ? day = '0' + day : null;
hour <= 9 ? hour = '0' + hour : null;
minute <= 9 ? minute = '0' + minute : null;
second <= 9 ? second = '0' + second : null;
return {day,hour,minute,second}
}
/* 数组操作 */
/* 检查数组中是否存在元素,存在删除 */
function arrayContains(item, array) {
var spl_index = null;
array.forEach((val, index) => {
if (val === item) {
spl_index = index;
}
})
if (spl_index != null) {
return array.splice(spl_index, 1);
}
return array;
}
/* 检验数组中是否存在 */
function isExistInarray(item, array) {
var r_index = null;
array.forEach((val, index) => {
if (val == item) {
r_index = index;
}
})
return r_index;
}
/* 获取原生表单提交的数据 */
function getFormData(elem) {
var d = elem.serialize();
var arr = d.split('&');
var o = {};
arr.map((val, index) => {
var x = val.split('=');
o[x[0]] = x[1];
})
return o;
}
常用公共js文件
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转载自blog.csdn.net/qq_43634982/article/details/99691920
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