Use for loop to create mulitiple variables?

Question

I want to use for loop to create multiple variables. I want to create

var node0 = document.getElementById("refresh_table_0");
node0.innerHTML="";
var node1 = document.getElementById("refresh_table_1");
node1.innerHTML="";
var node2 = document.getElementById("refresh_table_2");
node2.innerHTML="";

this is my imagination code:

for(i=0;i<3;i++){
var node+i = document.getElementById("refresh_table_i");
node+i.innerHTML="";
}

Any time you think you want a bunch of numbered variables, you're almost certainly doing it wrong. You should use an array. And if you think you need dynamically-named variables, you should use an object. — Barmar
– Barmar, Commented Jan 18, 2014 at 6:43

mio · Accepted Answer · 2014-01-18 06:44:45Z

1

First, this is javascript.
Second, the imagined code has errors, should be ("refresh_table_" + i).

Try using js arrays instead.

var node = new Array();
for(i=0;i<3;i++){
    node[i] = document.getElementById("refresh_table_" + i);
    node[i].innerHTML="";
}

edited Jan 18, 2014 at 6:44

answered Jan 18, 2014 at 6:38

mio

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Comments

jfriend00 · Accepted Answer · 2014-01-18 06:56:18Z

0

To just initialize all the items, you can simply do this as there's no need to retain each separate DOM object:

var node;
for (var i = 0; i < 3; i++) {
    node = document.getElementById("refresh_table_" + i);
    node.innerHTML = "";
}

Or, even just this:

for (var i = 0; i < 3; i++) {
    document.getElementById("refresh_table_" + i).innerHTML = "";
}

answered Jan 18, 2014 at 6:56

jfriend00

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