Jul 27, 2011 · Using object literals are very used case creating object in JavaScript, this an example of creating a simple object, you can assign anything to your object properties as long as they are defined: var person = { name: "Alireza", surname: "Dezfoolian" nose: 1, feet: 2, hands: 2, cash: null }; Prototyping

any object literal is inherited directly from Object.prototype that makes it direct child of Object class : obj.__proto__ == Object.prototype – Kamyar Nazeri Commented Apr 19, 2013 at 16:36

For IE11, you can use the Blob class to construct a File object. This seems to be the most portable solution to me. file = new Blob([blobdata], {type: filetype, lastModified: filelastModified}); file.name = filename

In the new ES2015 standard for JavaScript (formerly called ES6), objects can be created with computed keys: Object Initializer spec. The syntax is: var obj = { [myKey]: value, } If applied to the OP's scenario, it would turn into:

Oct 31, 2008 · Warning: there is a minor difference which could cause very irritating bugs! Creating an empty object assigning it to "{}" in an Object prototype will be the same Object instance in every Object instance created by a "new" operator. While do you use "new Object({})", you will have different instances. –

// Declares a memory variable called course and stores and object in it var course = new Object(); // Declares three variables var name; var gradingareas; var finalgrade; These declared variables aren't automatically connected to the object. If you want these properties declared on the object you have 2 options:

May 12, 2013 · This topic, especially the answer of Xotic750 was very helpful to me. I wanted to generate a json variable to pass it to a php script using ajax.

Oct 20, 2009 · The Object.defineProperty() method defines a new property directly on an object, or modifies an existing property on an object, and returns the object. Source: Mozilla

Basically I want to create one large object of many object in JavaScript. Something like: var objects = {} for (x) objects.x = {name: etc} Any ideas?

Sep 18, 2011 · new function(){...} will create a new object derived from the prototype of the anonymous function, and use the anonymous function to initialize it. You end up instantiating an object that you don't need. This honestly looks like a typo to me. Either way, obj.testing will be an object, not a function, and the alert will run on creation, not as a ...