Object.values can be used with a for-of loop:Javascript detect values from an object used Object.values 1 2 3 4 5 6 let obj = { name: "Porter", age: 32 }; const values = Object.values(obj); console.log(values);
<title>JavaScript Get Properties Values of an Object</title> 6 </head> 7 <body> 8 <script> 9 letbook={ 10 "name":"Harry Potter and the Goblet of Fire", 11 "author":"J. K. Rowling", 12 "year":2000 13 }; 14 15 // Dot notation ...
JavaScript Object.getOwnPropertyDescriptors()用法及代码示例 JavaScript Object.setPrototypeOf()用法及代码示例 JavaScript Object.getOwnPropertySymbols()用法及代码示例 JavaScript Object.defineProperties()用法及代码示例 JavaScript Object.freeze()用法及代码示例 JavaScript Object.preventExtensions()用法及代码示例 JavaS...
在JavaScript中,几乎所有的对象都是Object类型的实例,它们都会从Object.prototype继承属性和方法,虽然大部分属性都会被覆盖(shadowed)或者说被重写了(overridden)。 除此之外,Object还可以被故意的创建,但是这个对象并不是一个“真正的对象”(例如:通过Object.create(null)),或者通过一些手段改变对象,使其不再是一个“...
规范 Specification ECMAScript® 2026 Language Specification #sec-object.getownpropertysymbols 参见 core-js中Object.getOwnPropertySymbols的 polyfill Object.getOwnPropertyNames() Symbol
To get all own properties of an object in JavaScript, you can use theObject.getOwnPropertyNames()method. This method returns an array containing all the names of the enumerable and non-enumerableown propertiesfound directly on the object passed in as an argument. ...
Let's understand how to get all the unique values in a JavaScript array, i.e., how to remove duplicate values in array? Submitted by Pratishtha Saxena, on June 18, 2022 To make sure whether the given array contains all unique values (no repeated values) then there are the following ...
js Object.getOwnPropertyDescriptor("foo",0);// TypeError: "foo" is not an object // ES5 codeObject.getOwnPropertyDescriptor("foo",0);// Object returned by ES2015 code: {// configurable: false,// enumerable: true,// value: "f",// writable: false// } ...
JavaScript toLocaleString() JavaScript toString() JavaScript valueOf() JavaScript values() JavaScript Tutorials Javascript Object.defineProperty() JavaScript Object.getOwnPropertyDescriptors() Javascript Object.defineProperties() JavaScript Object.propertyIsEnumerable() JavaScript Object.getOwnPropertyNames() ...
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...