Angular $timeout within loop fails

Question

I am using angular $timeout as,

 $scope.alltexts = ["hii" , "hello" , "hehe"]
 var sendtime = 60000

 for (var i = 0; i < $scope.alltexts.length; i++) {
   var text = $scope.alltexts[i]
   $setTimeout(function() {}, (function(){$scope.addtext(text)}, sendtime + (i * 60000)));
 };

 $scope.addtext = function(text){
  console.log(text)
 }

But after each one minute it only console "hehe". Means it considers only last value. Please let me know how should I get proper results.

please look at the following if want some explanation stackoverflow.com/questions/5226285/…, stackoverflow.com/questions/750486/… — koox00
– koox00, Commented Apr 15, 2016 at 12:38

Thalaivar · Accepted Answer · 2016-04-15 12:29:52Z

2

Too much of closures today, you are always passing the last index... a closure will create a new scope for each iteration.

 $scope.alltexts = ["hii" , "hello" , "hehe"]
 var sendtime = 60000

 for (var i = 0; i < $scope.alltexts.length; i++) {
   (function(i){
   var text = $scope.alltexts[i]
   $setTimeout(function() {}, (function(){$scope.addtext(text)}, sendtime + (i * 60000)));
   })(i)
 };

 $scope.addtext = function(text){
  console.log(text)
 }

answered Apr 15, 2016 at 12:29

Thalaivar

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Comments

Wasiq Muhammad · Accepted Answer · 2016-04-15 12:31:56Z

1

Try this

$scope.alltexts = ["hii" , "hello" , "hehe"]
 var sendtime = 60000

 for (var i = 0; i < $scope.alltexts.length; i++) {
   (function(i){
   var text = $scope.alltexts[i]
   $setTimeout(function() {}, (function(){$scope.addtext(text)}, sendtime + (i * 60000)));
   })(i)
 };

 $scope.addtext = function(text){
  console.log(text)
 }

answered Apr 15, 2016 at 12:31

Wasiq Muhammad

3,1483 gold badges19 silver badges30 bronze badges

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