What is an exotic object?
What is an exotic object?
An exotic object is basically any built-in that isn’t a regular object. As the spec says, “This specification defines several kinds of built-in exotic objects”, and they are all listed right there, Array, String etc. – adeneo.
What is ecma6?
JavaScript ES6 (also known as ECMAScript 2015 or ECMAScript 6) is the newer version of JavaScript that was introduced in 2015. ECMAScript is the standard that JavaScript programming language uses. ECMAScript provides the specification on how JavaScript programming language should work.
What is a JavaScript object?
In JavaScript, an object is a standalone entity, with properties and type. Compare it with a cup, for example. A cup is an object, with properties. A cup has a color, a design, weight, a material it is made of, etc. The same way, JavaScript objects can have properties, which define their characteristics.
What is object prototype in JavaScript?
The prototype is an object that is associated with every functions and objects by default in JavaScript, where function’s prototype property is accessible and modifiable and object’s prototype property (aka attribute) is not visible. Every function includes prototype object by default. Prototype in JavaScript.
What features ecma6?
ES6 brought significant changes to the JavaScript language. It introduces several new features such as, block-scoped variables, new loop for iterating over arrays and objects, template literals, and many other enhancements to make JavaScript programming easier and more fun.
What does it mean to Destructure an object?
Destructuring is a JavaScript expression that allows us to extract data from arrays, objects, and maps and set them into new, distinct variables. Destructuring allows us to extract multiple properties, or items, from an array at a time.
What is prototype chain What is the difference between Proto and prototype?
Javascript
| Prototype | proto |
|---|---|
| It is mostly used to resolve issues of memory wastage when creating an object in constructor mode then each object has separate behavior. | It is used in the lookup chain to resolve methods, constructors, etc. |
| It is the property of the class. | It is the property of the instance of that class. |