I created an array and inserted a setInterval in it, but tmp[0] doesn't work
tmp = new Array();
v = new Array();
for(i=0; i<2; i++){
j = 0;
tmp[i] = setInterval("if(j<10+(i*5)){alert(i+' '+j);j++;}else{clearInterval(tmp[i])}", 1000);
}
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3What did you expect to happen?Blazemonger– Blazemonger2011-08-30 13:12:20 +00:00Commented Aug 30, 2011 at 13:12
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It should alert: "0 0" "1 0" "0 1" "1 1" "0 2" "1 2" ...R. 久蔵– R. 久蔵2011-08-30 13:18:28 +00:00Commented Aug 30, 2011 at 13:18
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@キューゾ リファイ see the update to my answer..Naftali– Naftali2011-08-30 13:26:40 +00:00Commented Aug 30, 2011 at 13:26
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2 Answers
Do Not use eval. Try this:
var tmp = new Array();
var v = new Array();
for (i = 0; i < 2; i++) {
var j = 0;
tmp[i] = setInterval(function () {
if (j < 10 + (i * 5)) {
alert(i + ' ' + j);
j++;
} else {
clearInterval(tmp[i])
}
}, 1000);
}
Fiddle: http://jsfiddle.net/FKEL6/ (it is annoying with the popups, just so you are aware.)
This might do what you want it to do:
var tmp = new Array();
var v = new Array();
var i = 0;
for (i = 0; i < 2; i++) {
createTmp(i);
}
function createTmp(p){
var j = 0;
tmp[p] = setInterval(function () {
if (j < 10 + (p * 5)) {
alert(p + ' ' + j);
j++;
} else {
clearInterval(tmp[p])
}
}, 1000);
}
console.log(tmp);
Fiddle: http://jsfiddle.net/FKEL6/5/ (also has annoying alerts)
8 Comments
zzzzBov
OP isn't using eval, they're using the deprecated form of
setInterval by passing a string.
Naftali
@キューゾ リファイ what does that mean
it doesnt run? what do you want it to do?
Felix Kling
Using a function creates another problem: scope.
Naftali
@キューゾ リファイ i will always be 2 because it is a global variable... and you increased it in the loop.
Naftali
@キューゾ リファイ I believe this might do what you want it to do: jsfiddle.net/FKEL6/5
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The output of such a thing is:
2 0
2 1
2 2
2 3
2 4
2 5
...
2 18
2 19
etc, which is correct. It stops when j < 20.
But at the end your timer is still going on and all you are doing is calling clearInterval(tmp[2]) over and over, twice a second.
