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Commonly used functions
This script should not be not be installed directly. It is a library for other scripts to include with the meta directive // @require https://update.greasyfork.org/scripts/447371/1066681/CommonlyMainFunctions.js
let isDebug = true;
let os = function () {
var ua = navigator.userAgent, //获取浏览器UA
isWindowsPhone = /(?:Windows Phone)/.test(ua),
isSymbian = /(?:SymbianOS)/.test(ua) || isWindowsPhone,
isAndroid = /(?:Android)/.test(ua),
isFireFox = /(?:Firefox)/.test(ua),
isChrome = /(?:Chrome|CriOS)/.test(ua),
isTablet = /(?:iPad|PlayBook)/.test(ua) || (isAndroid && !/(?:Mobile)/.test(ua)) || (isFireFox && /(?:Tablet)/.test(ua)),
isPhone = /(?:iPhone)/.test(ua) && !isTablet,
isPc = !isPhone && !isAndroid && !isSymbian;
return {
isTablet: isTablet,
isPhone: isPhone,
isAndroid: isAndroid,
isPc: isPc
};
}();
function Get(link) {
return new Promise(function (resolve) {
$.get(link, data => {
resolve(data);
});
});
}
//日志
function log() {
if (isDebug) {
console.log.apply(this, arguments);
}
};
function err() {
if (isDebug) {
console.error.apply(this, arguments);
}
}
function addStyle(statement = null, href = null) {
let mountElement = document.getElementsByTagName('head')[0];
if (mountElement) {
let style = null;
if (href !== null) {
style = document.createElement('link');
style.setAttribute('href', href);
style.setAttribute('rel', 'stylesheet');
} else if (statement !== null) {
style = document.createElement('style');
style.setAttribute('type', 'text/css');
style.textContent = statement;
}
return new Promise((resolve, reject) => {
try {
mountElement.appendChild(style);
style.onerror = (e) => reject(e);
style.onload = () => {
resolve();
}
} catch (error) {
reject(error);
}
});
}
return null;
}
function addScript(statement = null, src = null, isModule = false) {
let mountElement = document.getElementsByTagName('head')[0];
if (mountElement) {
let script = document.createElement("script");
if (src !== null) {
script.src = src;
} else if (statement !== null) {
script.textContent = statement;
if (isModule) script.type = "module";
}
return new Promise((resolve, reject) => {
try {
mountElement.appendChild(script);
script.onerror = (e) => reject(e);
script.onload = () => {
resolve();
}
} catch (error) {
reject(error);
}
});
}
return null;
}
//判断变量是否为空 空返回TRUE 否则返回 FALSE
function isEmpty(param){
if(param){
var param_type = typeof(param);
if(param_type == 'object'){
//要判断的是【对象】或【数组】或【null】等
if(typeof(param.length) == 'undefined'){
if(JSON.stringify(param) == "{}"){
return true;//空值，空对象
}
}else if(param.length == 0){
return true;//空值，空数组
}
}else if(param_type == 'string'){
//如果要过滤空格等字符
var new_param = param.trim();
if(new_param.length == 0){
//空值，例如:带有空格的字符串" "。
return true;
}
}else if(param_type == 'boolean'){
if(!param){
return true;
}
}else if(param_type== 'number'){
if(!param){
return true;
}
}
return false;//非空值
}else{
//空值,例如：
//(1)null
//(2)可能使用了js的内置的名称，例如：var name=[],这个打印类型是字符串类型。
//(3)空字符串''、""。
//(4)数字0、00等，如果可以只输入0，则需要另外判断。
return true;
}
}
//自定义过滤函数
function trimSpace(array) {
for (var i = 0; i < array.length; i++) {
//这里为过滤的值
if (array[i] == "" || array[i] == null || typeof (array[i]) == "undefined") {
array.splice(i, 1);
i = i - 1;
}
}
return array;
}