Question

Let’s set:

i = 1;
condition = i < 2; // Users makes this condition, not me.

condition value is true;

Now a little change.

i = 3;

And condition value will keep true;

Since I “don’t know” the condition, is there a way I can re-check the value of the condition?

I need something to make condition value become false right after setting i = 3;
What I have to do with the variable ‘condition’ to make it false, but remember: I don’t know the “condition” (i < 2), because users will make it, not me.

Answer 1

condition must be a function to be evaluated each time.

you can do things like :

var i = 1;
var condition = function() { i < 2 };
if(condition()) {
   alert('ok');
}
i=3;
if(!condition()) {
   alert('ok');
}