Question

Hi I need to create a load of variables in a javascript loop so say my loop goes round 5 times starting at 0 by the end of it the following variables should be defined:

variable_0
variable_1
variable_2
variable_3
variable_4

Can anyone tell me how to do this please?

Answer 1

This will create “global” variables by registering them on the window object:

for (var i = 0; i != 5; ++i) {
    window['variable_' + i] = null;
}

It’s not really nice to do that though =/ a better way is to define an object in which you create dynamic properties.

var obj = {}
for (var i = 0; i != 5; ++i) {
    obj['variable_' + i] = null;
}

console.log(obj.variable_0); // null