这样,特殊字符将被转换为对应的URL编码形式,从而避免被错误解析。下面是一个使用JavaScript进行URL参数编码的示例: function encodeQueryParams(params) { const encodedParams = []; for (const [key, value] of Object.entries(params)) { encodedParams.push(
Get the type of a JavaScript object
console.log(Object.keys(obj)); 输出如下: Object.getOwnProperty 用于返回对象的自有属性,包括可枚举和不可枚举的 var obj = {"name":"Poly", "career":"it"} Object.defineProperty(obj, "age", {value:"forever 18", enumerable:false}); Object.prototype.protoPer1 = function(){console.log("proto...
utils.js /** * Parse the time to string * @param {(Object...date.getDate(), h: date.getHours(), i: date.getMinutes(), s: date.getSeconds(), a: date.getDay...format.replace(/{(y|m|d|h|i|s|a)+}/g, (result, key) => { let value = formatObj[key] // Note: get...
function(e){return t.flat.call(e)}:function(e){return t.concat.apply([],e)},u=t.push,i=t.indexOf,n={},o=n.toString,v=n.hasOwnProperty,a=v.toString,l=a.call(Object),y={},m=function(e){return"function"==typeof e&&"number"!=typeof e.nodeType},x=function(e){return null...
get: function(target, propKey) { return (Math.random() * 100).toFixed(0); }, } ); let obj = Object.create(proxy); obj.time; // 82 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. proxy 对象是 obj 对象的原型,obj 对象本身并没有 time 属性,所以根据原型链,会在 proxy 对象上读取...
constkey=Symbol('key')exportclassA{[key]=1value(){console.log(this[key])}} It seems thatkeyis not expose to outside of module, but still we are able to get it. import{A}from'./module.js'consta=newA()constkeys=Object.getOwnPropertySymbols(a)console.log(keys)//[Sybmol(key)]const...
System.Runtime.InteropServices.JavaScript.dll typeof()傳回 屬性。 C# publicstringGetTypeOfProperty(stringpropertyName); 參數 propertyName String 屬性的名稱。 傳回 String 其中一個 “undefined”、“object”、“boolean”、“number”、“bigint”、“string”、“symbol” 或“function”。
Object.getOwnPropertySymbols() constobj={};consta=Symbol("a");constb=Symbol.for("b");obj[a]="localSymbol";obj[b]="globalSymbol";constobjectSymbols=Object.getOwnPropertySymbols(obj);console.log(objectSymbols.length);// 2console.log(objectSymbols);// [Symbol(a), Symbol(b)]console.log(...
functiondef(obj, key, val, enumerable) {Object.defineProperty(obj, key, {value: val,enumerable: !!enumerable,writable:true,configurable:true}) }constobj = {}def(obj,'name','leslie',true)def(obj,'age',18,false)def(obj,'company','ibm',true)// 🚀 测试 enumerablefor(let[key,value]of...