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Jul 1, 2021 · zz/KGC-375/STAR MAX/IPx. UPDATED: Donald Trump may or may not be joining “ Gettr ,” a newly launched social app from the ex-president’s ex-spokesman. The twice-impeached Trump has been ...
- Todd Spangler
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What is a getter in JavaScript?
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What are getters & setters in JavaScript?
Jan 22, 2015 · I don't need to know how to print the value some other way. After all console.log(obj.id) does just that. I need to figure out how to have the console.log behave the same on a getter/setter property as on a primitive value. –
Code sample
var obj = new Cls();obj.id = 123;console.log(obj);console.log(obj.id);...- Overview
- Syntax
- Description
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The get syntax binds an object property to a function that will be called when that property is looked up. It can also be used in classes.
Parameters
prop\t The name of the property to bind to the given function. In the same way as other properties in object initializers, it can be a string literal, a number literal, or an identifier. expression\t You can also use expressions for a computed property name to bind to the given function.
Sometimes it is desirable to allow access to a property that returns a dynamically computed value, or you may want to reflect the status of an internal variable without requiring the use of explicit method calls. In JavaScript, this can be accomplished with the use of a getter.
An object property is either a data property or an accessor property, but it cannot simultaneously be both. Read Object.defineProperty() for more information. The getter syntax allows you to specify the getter function in an object initializer.
Defining a getter on new objects in object initializers
This will create a pseudo-property latest for object obj, which will return the last array item in log. Note that attempting to assign a value to latest will not change it.
Using getters in classes
You can use the exact same syntax to define public instance getters that are available on class instances. In classes, you don't need the comma separator between methods. Getter properties are defined on the prototype property of the class and are thus shared by all instances of the class. Unlike getter properties in object literals, getter properties in classes are not enumerable. Static getters and private getters use similar syntaxes, which are described in the static and private properties pages.
Deleting a getter using the delete operator
If you want to remove the getter, you can just delete it:
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•Working with objects guide
•Functions
•set
•Object.defineProperty()
•Object initializer
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The getName() and setName() methods are known as getter and setter in other programming languages such as Java and C++. ES6 provides a specific syntax for defining the getter and setter using the get and set keywords. For example: class Person {. constructor (name) {. this ._name = name; } get name() {.
A getter is a deposit of reactive material that is placed inside a vacuum system to complete and maintain the vacuum. When gas molecules strike the getter material, they combine with it chemically or by absorption. Thus the getter removes small amounts of gas from the evacuated space. The getter is usually a coating applied to a surface within ...
You can obtain values from an object and set the value of a property within an object. These are classically called getters and setters.. Getter functions are meant to simply return (get) the value of an object's private variable to the user without the user directly accessing the private variable.
