How i can make a 3 multidemnsional array? And the called ir from "for"

Question

i ask a question to a usser with prompt and arrays, and then i want to show the full info using a doc.write calling all the arrays (array with 2 sub arrays and 2 sub sub arrays inside one of the second dimension, is very messi but i hope it understand. thanks

Answer 1

Better to show us your actual code, to good understanding your data structure... and do you want do output only the raw data, or does it fit into a specific html structure ( template )?

Anyway, iterating over a 3 dimentionnal array with 'for' statement is done like that:

var arr = [ ];
var d1 = 5; // 1st dimension
var d2 = 5; // 2nd dimension
var d3 = 5; // 3rd dimension
var i, j, k;
// populating the array:
for (i=0; i<d1; i++) {
arr.push([ ]);
for (j=0; j<d1; j++) {
arr[i].push([ ]);
for (k=0; k<d1; k++) {
arr[i][j].push(Math.floor(100*Math.random()));
}
}
}
// output the array items in a simple list format
var out = '';
for (i=0; i<d1; i++) {
for (j=0; j<d1; j++) {
for (k=0; k<d1; k++) {
out += '['+i+','+j+','+k+'] : '+arr[i][j][k]+'\n';
}
}
}
document.write('<pre>'+out+'</pre>');