Js two-dimensional array Definition

 
1. The two-dimensional array declaration method is as follows:

Var images = new Array (); // declare a dimension first
For (var I = 0; I <10; I ++) {// One-dimensional length is 10
Images [I] = new Array (); // declare a two-dimensional
For (var j = 0; j <20; j ++) {// the two-dimensional length is 20
Images [I] [j] = 1;
}
}

 

2. The second-level array of www.2cto.com should be used like this.

Alert (images [0] [0]); it is really troublesome to declare. first declare the first dimension, and then generate the second dimension cyclically.

 

From Xu Yue's column