What are objects in JavaScript?
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 are the different ways of creating objects in JavaScript?
There are four ways to create an object in JavaScript – using object literals, using the function constructor, using the Object. create method, and using the class keyword (which is almost the same as using a function constructor).
What are the various JavaScript objects explain each with an example?
A javaScript object is an entity having state and behavior (properties and method). For example: car, pen, bike, chair, glass, keyboard, monitor etc. JavaScript is an object-based language. Everything is an object in JavaScript.
What are object properties in JavaScript?
Object properties are defined as a simple association between name and value. All properties have a name and value is one of the attributes linked with the property, which defines the access granted to the property. Properties refer to the collection of values which are associated with the JavaScript object.
What are the four types of JavaScript objects?
In JavaScript, almost “everything” is an object.
- Booleans can be objects (if defined with the new keyword)
- Numbers can be objects (if defined with the new keyword)
- Strings can be objects (if defined with the new keyword)
- Dates are always objects.
- Maths are always objects.
- Regular expressions are always objects.
What are the examples of object?
An object can be a single-word noun (e.g., dog, goldfish, man), a pronoun (e.g., her, it, him), a noun phrase (e.g., the doggy in window, to eat our goldfish, a man about town), or a noun clause (e.g., what the dog saw, how the goldfish survived, why man triumphed). Read more about direct objects.
What is NaN property in JavaScript?
The NaN property represents “Not-a-Number” value. This property indicates that a value is not a legal number.
How many types of object properties are there in JavaScript?
two types
Summary. JavaScript objects have two types of properties: data properties and accessor properties.
What are the 7 most common JavaScript operators?
- Assignment operators. An assignment operator is a binary operator.
- Comparison operators. A comparison operator is a binary operator.
- Arithmetic operators. An arithmetic operator can be a binary or unary operator.
- Logical operators.
- String operators.
- Ternary (conditional) operator.
What is object and its types?
An object is a noun (or pronoun) that is governed by a verb or a preposition. There are three kinds of object: Direct Object (e.g., I know him.) Indirect Object (e.g., Give her the prize.) Object of a Preposition (e.g., Sit with them.)