11. 1. 2. Use Array's Constructor |
|
Arrays stores multiple data based on a numbered position into one storage structure. |
The index starts at 0 and goes up. |
JavaScript supports having arrays within arrays, called multidimensional arrays. |
One-Dimensional array |
To create an instance of an array, you use the new operator along with the Array object. |
There are four ways to declare an array. |
First, an empty array can be created by leaving the constructor parameters empty: |
|
The second way to create an array is to fill in the constructor parameters with the array elements. |
An array can contain elements of various types: |
var x = new Array("A","BB","CCC",1,5,8);
|
|
The third way to create an array is to fill in the constructor parameter with the size of the array. |
This initializes the array to hold the number of elements specified, but does not specify the actual elements. |
|
The fourth way to create an array is to use the array square brackets to fill in the array elements directly. |
var x = ["A","BB","CCC",1,5,8];
|
|