How to define an object array in JavaScript

In JavaScript, you can use the keyword new to create an array object, and the syntax format is "var array name=new Array()". Array objects are used to store a series of values ​​in separate variable names.

The operating environment of this tutorial: windows7 system, javascript version 1.8.5, Dell G3 computer.

Array objects are used to store a series of values ​​in separate variable names.

We use the keyword new to create an array object. The following code defines an array object named myArray:

var myArray=new Array()

There are two ways to assign values ​​to an array (you can add as many values ​​as you want, just like you can define as many variables as you need ).

1,

var mycars=new Array()mycars[0]="Saab"
mycars[1]="Volvo"
mycars[2]="BMW"

You can also use an integer independent variable to control the capacity of the array:

var mycars=new Array(3)mycars[0]="Saab"
mycars[1]="Volvo"
mycars[2]="BMW"

2,

var mycars=new Array("Saab","Volvo","BMW")

Note: If you need to If a numerical or logical value is specified in the array, the variable type should be a numerical variable or a Boolean variable, not a character variable.

[Recommended learning: javascript advanced tutorial]

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