I think extent = {300,250}; and extent = "300 250"; was just to allow compatibility between both torque and GS2. Or maybe GS2 and GS1... Not sure which case but I do believe it's for compatibility.
I use extent = {300,250}; but I'm not sure if this is the best way.
As for checks,
PHP Code:
function onCreated()
{
this.test = 10;
if (this.test in |5,50|)
{
echo("Test 1 true");
}
if (this.test in {5,50})
{
echo("Test 2 true");
}
}
Test 1 is true while test 2 isn't. Basically, | | tests for all numbers in between. So for |5,50| it checks if the number is in between 5 and 50. Using {5,50} however only checks if the number is part of the array: it doesn't check in between numbers. So unless the result is 5 or 50, it's false.
Array checking does have one advantage though, it can check for multiple values while not needing to check all in between values. For example, if I did
PHP Code:
function onCreated()
{
this.test = 10;
if (this.test in {5,50,10})
{
echo("Test 2 true");
}
}
This would echo true as this.test is contained within the array. This method can also work like this:
PHP Code:
function onCreated()
{
this.food = "pizza";
if (this.food in {"pizza","pie","banana"})
{
printf("I like %s",this.food);
}
}
This method would print "I like pizza" since pizza was in the array. Hope this helps
.