Javascript 2D数组初始化

Question

I am plotting a data set using javascript.flot library and jquery. The libraary require to pass a [[x1,y1], [x2, y2], [x3, y3]] pairs to the plot function. I used the following code to initialize the array d2 for plot:

                    var d2=[];
                     for(var i=0; i<9; i++) {
                         d2.push([myx[i], myy[i]]);
                     }

where myx and myy are 1d arrays of x and y values resp.

This doesnot work. im unable to troubleshoot. What is wrong with my code or if it is a browser problem.

Answer 1

Create Two Dimensional Array in Javascript:

var iMax = 20;
var jMax = 10;
var f = new Array();

for (i=0;i<iMax;i++) {
    f[i]=new Array();
    for (j=0;j<jMax;j++) {
        f[i][j]=0;
    }
}

Answer 2

I've made an example with jquery plot in jsfiddle:

http://jsfiddle.net/n7w2d/

$(function() {
  var myx = [ 1, 2, 3, 4, 5, 6, 7, 8, 9];
  var myy = [ 10, 20, 30, 40, 50, 40, 30, 20, 10];
  // THIS IS YOUR CODE
  var d2=[];
  for(var i=0; i<9; i++) {
    d2.push([myx[i], myy[i]]);
  }
  // END OF YOUR CODE
  $.plot("#placeholder", [ d2 ]);
});

1. A HTML #placeholder
2. A CSS rule to add a height to the div.
3. Made up some myx, myy data