how to define a nested array code example
Example 1: javascript define multidimensional array
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;
}
}
Example 2: javascript two dimensional array
var grid = [];
iMax = 3;
jMax = 2;
count = 0;
for (let i = 0; i < iMax; i++) {
grid[i] = [];
for (let j = 0; j < jMax; j++) {
grid[i][j] = count;
count++;
}
}
// grid = [
// [ 0, 1 ]
// [ 2, 3 ]
// [ 4, 5 ]
// ];
console.log(grid[0][2]); // 4