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Jasmine test case failing due to ''TypeError: _co.arr.slice is not a function"

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.everyoneloves__top-leaderboard:empty,.everyoneloves__mid-leaderboard:empty,.everyoneloves__bot-mid-leaderboard:empty margin-bottom:0;

0

1

In my .ts file, I have 'arr' being assigned an array fetched from an api call.
The respective .html file uses

*ngFor="let item of arr.slice(0, historyLimit)"

When I write a test case,
I get following error:

TypeError: _co.arr.slice is not a function

angular jasmine

share|improve this question

asked Mar 28 at 19:16

Rachitha B RRachitha B R

2655 bronze badges

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  it is not recommended to use functions in *ngFor loops. try to perform the processing in typescript and use the result in angular
  
  – jcuypers
  Mar 28 at 19:21
  
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Be sure you are doing the api call in an beforeEach where you are calling done() when it finishes, and be sure you aren't trying to call arr.slice() before it is assigned to the response data.
  
  – Jim
  Mar 28 at 19:27
  

  
  
  
  

add a comment
 | 

0

1

In my .ts file, I have 'arr' being assigned an array fetched from an api call.
The respective .html file uses

*ngFor="let item of arr.slice(0, historyLimit)"

When I write a test case,
I get following error:

TypeError: _co.arr.slice is not a function

angular jasmine

share|improve this question

asked Mar 28 at 19:16

Rachitha B RRachitha B R

2655 bronze badges

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  it is not recommended to use functions in *ngFor loops. try to perform the processing in typescript and use the result in angular
  
  – jcuypers
  Mar 28 at 19:21
  
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Be sure you are doing the api call in an beforeEach where you are calling done() when it finishes, and be sure you aren't trying to call arr.slice() before it is assigned to the response data.
  
  – Jim
  Mar 28 at 19:27
  

  
  
  
  

add a comment
 | 

In my .ts file, I have 'arr' being assigned an array fetched from an api call.
The respective .html file uses

*ngFor="let item of arr.slice(0, historyLimit)"

When I write a test case,
I get following error:

TypeError: _co.arr.slice is not a function

angular jasmine

share|improve this question

asked Mar 28 at 19:16

Rachitha B RRachitha B R

2655 bronze badges

angular jasmine

angular jasmine

share|improve this question

asked Mar 28 at 19:16

Rachitha B RRachitha B R

2655 bronze badges

share|improve this question

asked Mar 28 at 19:16

Rachitha B RRachitha B R

2655 bronze badges

asked Mar 28 at 19:16

Rachitha B RRachitha B R

2655 bronze badges

asked Mar 28 at 19:16

Rachitha B RRachitha B R

2655 bronze badges