What is javascript array object?

Answer 1

An object in JavaScript is anything that holds information. Arrays, strings, numbers and booleans are all objects. You can then use methods and functions to manipulate those objects. If you want to know more about objects, see the related links.

Answer 2

In JavaScript, objects are data (variables), with properties and methods. There are 7 native objects in JavaScript.

The Number Object creates a number.

The Boolean Object holds true/false values for use in logical expressions.

The String Object creates a string of characters.

The Arrays Object builds an array comprised of any or all of the other object types, including itself.

The Date Object creates dates and times.

The Math Object provides you properties and methods for mathematical constants and functions

The RegExp Object creates a regular expression, which is a pattern matching system.

Answer 3

The JavaScript array object is used to store multiple values into one variable. They are great for loops. An array can hold all objects; you can even put another array into an array. It's really easy to make an array:

x = [1, 'text', ['array'] ]

This creates an array with three values. Now that you have an array, there's a number of things you can do with it. The simplest is to call a single value from the array: x[0] returns 1, x[1] returns 'text' and x[2] returns ['array'].

You can get the length of an array by using x.length(). x.length would return 3 for this array.

You can add more values to the end of an array by using array.push(), so x.push('more_text') adds the value 'more_text' to array x. There's a number of other things you can do with it too, like reversing and joining two arrays together.