say I wanted to use variables like
var userpos1 : int; var userpos2 : int; var userpos3 : int; //in a for loop like var i=1; for (i=1;i<=3;i++) { userposi + 1 } how would I place the i so that the for loop goes through all of my variables properly
var userpos1var : int; var userpos2var : int; var userpos3var : int; //in a for loop like var i=1; for (i=1;i<=3;i++) { userposivar + 1 } is there something I need to do to this i to make it work properly such as a "" or a [] around it?
Create an array of those vars and go over like this
for(i = 0; i < 3; i++) { func(arr[i]); } you should use an array of variables instead, but to do what you are wanting to do, you would write:
eval("userpos" + i + "var") + 1 eval can be unsafe to use, and does not peform well.
<script type="text/javascript"> var userpos1 = 1; var userpos2 = 2; var userpos3 = 3; var i = 1; for (i=1;i<=3;i++) { alert (eval("userpos" + i)); } </script> 
eval('userpos' + i + ' += ' + i);
Why don't you use an array... ?
var userpos = new Array(3); for (var i=0; i<userpos.length; i++) {} { userpos[i] = i; } This is much easier done by storing those values in a single array and iterating over the array.
someArray = new Array(1, 2, 3); for (key in someArray) alert(someArray[key] ); 
Array it'll break unless you add a check for it.
Instead of doing it this way, use an array of user positions:
//Create an array of 3 positions, setting all to 0
var userPos=new Array(0, 0, 0);
//loop through each position - notice starts at 0.
for (var i = 0; i < 2; i++)
{
userPos[i] += 1;
}
Eval() would do it, but we should not encourage the use of it. Instead, construct an anonymous function.
for ( i = 1; i <= 3; i++ ) { alert(new Function('return userpos' + i + 'var;')()); // value of userpos1var } Update JSFiddle example: http://jsfiddle.net/madr/AHBrd/
What you're looking for is:
var userpos = ['a','b','c']; for(var i=0; i < userpos.length; i++) { userpos[i]; // doing something with it. } 