// 数组vara = [];// 这个好像不是对象,是 string//var b = '';// 字面量varc = {};// 正则vard =/abcd/gi;// dom apivare =document.createElement('a');// js Object 内置方法varf =Object.create(null);// js Object内置方法varg =Object.assign({{});// JSON转换varh =JSON.parse('...
publicstringGetTypeOfProperty(stringpropertyName); Parameters propertyName String The name of the property. Returns String One of "undefined", "object", "boolean", "number", "bigint", "string", "symbol" or "function". Applies to ПродуктВерсії ...
configurable− Contains the boolean value representing whether the object is configurable. writable− It also contains the boolean value, representing whether the object is writable. By default, you can't edit other attributes except the value attribute of the object property. You need to use th...
Object.getPrototypeOf(object)//获取对象的原型对象 Object.getPrototypeOf(Object.setPrototypeOf({x: 1}, {x: 2}));//{x: 2} Object.getPrototypeOf('abc') === String.prototype Object.getPrototypeOf(true) === Boolean.prototype Object.getOwnPropertyDescriptor(object, prop)//返回object对象prop属性的描...
consthome="c:\\temp"; 也可以在换行之前加上反斜杠以转义换行。这样反斜杠和换行都不会出现在字符串的值中。 js conststr="this string \ is broken \ across multiple \ lines.";console.log(str);// this string is broken across multiple lines....
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...
public string GetTypeOfProperty (string propertyName); Parameters propertyName String The name of the property. Returns String One of "undefined", "object", "boolean", "number", "bigint", "string", "symbol" or "function". Applies to ProductVersies .NET 7, 8, 9 Met...
propertyIsEnumerable (propertyName)* Returns a boolean value that indicates whether the given property can be enumerated by a for...in loop in the current object. propertyName Required. String that specifies the name of the property. toLocaleString ( )* Returns a localized string representing th...
publicstringGetTypeOfProperty(stringpropertyName); Parametri propertyName String Nome della proprietà. Restituisce String Uno di "undefined", "object", "boolean", "number", "bigint", "string", "symbol" o "function". Si applica a ProdottoVersioni ...
The Object.getOwnPropertyDescriptor() method returns a property descriptor for a specific property of an object. Example let obj = {num: 10} // get the property description // of the num property of obj let numValue = Object.getOwnPropertyDescriptor(obj, "num"); console.log(numValue);...