Well, the only thing that I can tell you about are getter:
var foo = {
a: 5,
b: 6,
get c() {
return this.a + this.b;
}
}
console.log(foo.c) // 11
This is a syntactic extension introduced by the ECMAScript 5th Edition Specification, the syntax is supported by most modern browsers (including IE9).
Related Contents:
- How can I add a key/value pair to a JavaScript object?
- How to use a variable for a key in a JavaScript object literal?
- JavaScript property access: dot notation vs. brackets?
- How to create an array of object literals in a loop?
- Template String As Object Property Name
- dynamic keys for object literals in Javascript [duplicate]
- create object using variables for property name [duplicate]
- Adding/removing items from a JavaScript object with jQuery
- Dynamically Add Variable Name Value Pairs to JSON Object
- Javascript ‘colon’ for labeling anonymous functions?
- How to fill a Javascript object literal with many static key/value pairs efficiently?
- Adding Prototype to JavaScript Object Literal
- Use a concatenated (dynamic) string as JavaScript object key? [duplicate]
- Call functions from function inside an object (object literal)
- Loop through an array in JavaScript
- module.exports vs exports in Node.js
- How to find first element of array matching a boolean condition in JavaScript?
- Node update a specific package
- What happened to Lodash _.pluck?
- How do I define global variables in CoffeeScript?
- How can jQuery deferred be used?
- How does “this” keyword work within a function?
- Getting the parent div of element
- How to filter keys of an object with lodash?
- How do I calculate the date in JavaScript three months prior to today?
- Call a function on click event in Angular 2
- How can I wait for set of asynchronous callback functions?
- How to convert all elements in an array to integer in JavaScript?
- Bootstrap close responsive menu “on click”
- use filter to return property values in an object
- React: adding props to an existing component
- Multiple populates – mongoosejs
- Safari Developer Tools: How to Preserve Console Log Upon Navigation?
- How to pass argument to Mongo Script
- Get current page http status from javascript
- Deleting a window property in IE
- JavaScript loop variable scope
- In Firebase when using push() How do I pull the unique ID
- HTML select drop-down with an input field [duplicate]
- Bypassing CAPTCHAs with Headless Chrome using puppeteer
- sort json object in javascript
- Benefits of using `Object.create` for inheritance
- Bootstrap switch checked event?
- Youtube embed: Unsafe JavaScript attempt to access frame
- Lightweight Rules Engine in Javascript [closed]
- Firestore – get specific fields from document
- I’m unable to inject a style with an “!important” rule [duplicate]
- Firestore select where is not null
- In JavaScript, is chained assignment okay?
- Converting latitude and longitude to decimal values