Javascript filter was unfair
up vote
-3
down vote
favorite
I'm trying to get existCount from an array, which has id in selected array.
But something went wrong, I had an item with id = 5493 but existCount.length 0
My JS code:
var existCount = $scope.selectedScript.filter(function (item) {
return item.id === script.script_id;
});
console.log('existCount.length ', existCount.length);
console.log('$scope.selectedScript ', $scope.selectedScript);
console.log('script.script_id ', script.script_id);
Chrome Console view:
https://i.stack.imgur.com/4UVWw.png
// Sorry I forgot the first output line, but this line's at the top of $scope.selectedScript and it was existCount.length = 0
Where my fault?
How can I fix it?
Thanks!
javascript chrome-debugging
asked Nov 19 at 23:58
Anh Tuan
42
add a comment |
up vote
-3
down vote
favorite
I'm trying to get existCount from an array, which has id in selected array.
But something went wrong, I had an item with id = 5493 but existCount.length 0
My JS code:
var existCount = $scope.selectedScript.filter(function (item) {
return item.id === script.script_id;
});
console.log('existCount.length ', existCount.length);
console.log('$scope.selectedScript ', $scope.selectedScript);
console.log('script.script_id ', script.script_id);
Chrome Console view:
https://i.stack.imgur.com/4UVWw.png
// Sorry I forgot the first output line, but this line's at the top of $scope.selectedScript and it was existCount.length = 0
Where my fault?
How can I fix it?
Thanks!
javascript chrome-debugging
asked Nov 19 at 23:58
Anh Tuan
42
Please don't post images of code. Edit your question to format your code as blocks using the{ }icon or Ctrl+K.
– Patrick Roberts
Nov 20 at 0:02
@PatrickRoberts Ok, I will edit now, thank for your help.
– Anh Tuan
Nov 20 at 0:04
add a comment |
up vote
-3
down vote
favorite
up vote
-3
down vote
favorite
I'm trying to get existCount from an array, which has id in selected array.
But something went wrong, I had an item with id = 5493 but existCount.length 0
My JS code:
var existCount = $scope.selectedScript.filter(function (item) {
return item.id === script.script_id;
});
console.log('existCount.length ', existCount.length);
console.log('$scope.selectedScript ', $scope.selectedScript);
console.log('script.script_id ', script.script_id);
Chrome Console view:
https://i.stack.imgur.com/4UVWw.png
// Sorry I forgot the first output line, but this line's at the top of $scope.selectedScript and it was existCount.length = 0
Where my fault?
How can I fix it?
Thanks!
javascript chrome-debugging
asked Nov 19 at 23:58
Anh Tuan
42
I'm trying to get existCount from an array, which has id in selected array.
But something went wrong, I had an item with id = 5493 but existCount.length 0
My JS code:
var existCount = $scope.selectedScript.filter(function (item) {
return item.id === script.script_id;
});
console.log('existCount.length ', existCount.length);
console.log('$scope.selectedScript ', $scope.selectedScript);
console.log('script.script_id ', script.script_id);
Chrome Console view:
https://i.stack.imgur.com/4UVWw.png
// Sorry I forgot the first output line, but this line's at the top of $scope.selectedScript and it was existCount.length = 0
Where my fault?
How can I fix it?
Thanks!
javascript chrome-debugging
javascript chrome-debugging
asked Nov 19 at 23:58
Anh Tuan
42
asked Nov 19 at 23:58
Anh Tuan
42
edited Nov 20 at 0:35
asked Nov 19 at 23:58
Anh Tuan
42
asked Nov 19 at 23:58
Anh Tuan
42
asked Nov 19 at 23:58
Anh Tuan
42
42
Please don't post images of code. Edit your question to format your code as blocks using the{ }icon or Ctrl+K.
– Patrick Roberts
Nov 20 at 0:02
@PatrickRoberts Ok, I will edit now, thank for your help.
– Anh Tuan
Nov 20 at 0:04
add a comment |
Please don't post images of code. Edit your question to format your code as blocks using the{ }icon or Ctrl+K.
– Patrick Roberts
Nov 20 at 0:02
@PatrickRoberts Ok, I will edit now, thank for your help.
– Anh Tuan
Nov 20 at 0:04
Please don't post images of code. Edit your question to format your code as blocks using the
{ } icon or Ctrl+K.– Patrick Roberts
Nov 20 at 0:02
Please don't post images of code. Edit your question to format your code as blocks using the
{ } icon or Ctrl+K.– Patrick Roberts
Nov 20 at 0:02
@PatrickRoberts Ok, I will edit now, thank for your help.
– Anh Tuan
Nov 20 at 0:04
@PatrickRoberts Ok, I will edit now, thank for your help.
– Anh Tuan
Nov 20 at 0:04
add a comment |
2 Answers
2
active
oldest
votes
up vote
0
down vote
accepted
Change return item.id === script.script_id; to return item.id == script.script_id;
In your case: item.id was a number, script.script_id was a string. You can see it in chrome debug by color, black for string, blue for number.
=== is the hard way to compare in JS.
You can see at https://stackoverflow.com/a/359509/8572205
So === return false and no item added into existCount
answered Nov 20 at 0:10
Navy Flame
167112
Did you try it?
– Navy Flame
Nov 20 at 0:14
add a comment |
up vote
0
down vote
if you use triple-equals ===, make sure both the values in comparison are of same type. I suspect script.script_id is a string.
Try changing === to ==
answered Nov 20 at 0:09
Dinesh Pandiyan
2,088823
add a comment |
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2 Answers
2
active
oldest
votes
2 Answers
2
active
oldest
votes
active
oldest
votes
active
oldest
votes
up vote
0
down vote
accepted
Change return item.id === script.script_id; to return item.id == script.script_id;
In your case: item.id was a number, script.script_id was a string. You can see it in chrome debug by color, black for string, blue for number.
=== is the hard way to compare in JS.
You can see at https://stackoverflow.com/a/359509/8572205
So === return false and no item added into existCount
answered Nov 20 at 0:10
Navy Flame
167112
Did you try it?
– Navy Flame
Nov 20 at 0:14
add a comment |
up vote
0
down vote
accepted
Change return item.id === script.script_id; to return item.id == script.script_id;
In your case: item.id was a number, script.script_id was a string. You can see it in chrome debug by color, black for string, blue for number.
=== is the hard way to compare in JS.
You can see at https://stackoverflow.com/a/359509/8572205
So === return false and no item added into existCount
answered Nov 20 at 0:10
Navy Flame
167112
Did you try it?
– Navy Flame
Nov 20 at 0:14
add a comment |
up vote
0
down vote
accepted
up vote
0
down vote
accepted
Change return item.id === script.script_id; to return item.id == script.script_id;
In your case: item.id was a number, script.script_id was a string. You can see it in chrome debug by color, black for string, blue for number.
=== is the hard way to compare in JS.
You can see at https://stackoverflow.com/a/359509/8572205
So === return false and no item added into existCount
answered Nov 20 at 0:10
Navy Flame
167112
Change return item.id === script.script_id; to return item.id == script.script_id;
In your case: item.id was a number, script.script_id was a string. You can see it in chrome debug by color, black for string, blue for number.
=== is the hard way to compare in JS.
You can see at https://stackoverflow.com/a/359509/8572205
So === return false and no item added into existCount
answered Nov 20 at 0:10
Navy Flame
167112
edited Nov 20 at 0:18
answered Nov 20 at 0:10
Navy Flame
167112
answered Nov 20 at 0:10
Navy Flame
167112
answered Nov 20 at 0:10
Navy Flame
167112
167112
Did you try it?
– Navy Flame
Nov 20 at 0:14
add a comment |
Did you try it?
– Navy Flame
Nov 20 at 0:14
Did you try it?
– Navy Flame
Nov 20 at 0:14
Did you try it?
– Navy Flame
Nov 20 at 0:14
add a comment |
up vote
0
down vote
if you use triple-equals ===, make sure both the values in comparison are of same type. I suspect script.script_id is a string.
Try changing === to ==
answered Nov 20 at 0:09
Dinesh Pandiyan
2,088823
add a comment |
up vote
0
down vote
if you use triple-equals ===, make sure both the values in comparison are of same type. I suspect script.script_id is a string.
Try changing === to ==
answered Nov 20 at 0:09
Dinesh Pandiyan
2,088823
add a comment |
up vote
0
down vote
up vote
0
down vote
if you use triple-equals ===, make sure both the values in comparison are of same type. I suspect script.script_id is a string.
Try changing === to ==
answered Nov 20 at 0:09
Dinesh Pandiyan
2,088823
if you use triple-equals ===, make sure both the values in comparison are of same type. I suspect script.script_id is a string.
Try changing === to ==
answered Nov 20 at 0:09
Dinesh Pandiyan
2,088823
answered Nov 20 at 0:09
Dinesh Pandiyan
2,088823
answered Nov 20 at 0:09
Dinesh Pandiyan
2,088823
answered Nov 20 at 0:09
Dinesh Pandiyan
2,088823
2,088823
add a comment |
add a comment |
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Please don't post images of code. Edit your question to format your code as blocks using the
{ }icon or Ctrl+K.– Patrick Roberts
Nov 20 at 0:02
@PatrickRoberts Ok, I will edit now, thank for your help.
– Anh Tuan
Nov 20 at 0:04