javascript var declaration within loop
- by Trouts
hello,
/*Test scope problem*/
for(var i=1; i<3; i++){
//declare variables
var no = i;
//verify no
alert('setting '+no);
//timeout to recheck
setTimeout(function(){
alert('test '+no);
}, 500);
}
it alerts "setting 1" and "setting 2" as expected, but after the timeout it outputs "test 2" twice - for some reason the variable "no" is not reset after the first loop...
i've found only an "ugly" workaround...
/*Test scope problem*/
var func=function(no){
//verify no
alert('setting '+no);
//timeout to recheck
setTimeout(function(){
alert('test '+no);
}, 500);
}
for(var i=1; i<3; i++){
func(i);
}
Any ideas on how to workaround this problem in a more direct way? or is this the only way?
