Angularjs-service return value

Question

I have service

angular.module('myapp')
.service('AnswerService', function() {
    var answers = [];
    this.addAnswers = function(questionId) { 
        answers.push(questionId);
        console.log(answers);
    }
    return this;
})

and have to retrieve the value of answers in controller and display it in html.

should I use return this or return answers?

i have called addAnswers func in my controller for looping and store the value in array. my issue is i have to retrieve 'answers' array in controller. — Akshaya
– Akshaya, Commented Jun 14, 2016 at 5:11
Depends on what you want to do... Do you want to expose the addAnswer functionality, or not? — Rohan Büchner
– Rohan Büchner, Commented Jun 14, 2016 at 6:25

Muthukannan Kanniappan · Accepted Answer · 2016-06-14 05:12:56Z

2

Add another getter function, like,

angular.module('myapp')
.service('AnswerService', function() {
    var answers = [];
    this.addAnswers = function(questionId) { 
        answers.push(questionId);
        console.log(answers);
    }
    this.getAnswers = function() {
        return answers;
    }
});

answered Jun 14, 2016 at 5:12

Muthukannan Kanniappan

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5 Comments

Fergus Over a year ago

Exactly, beat me to it

Akshaya Over a year ago

how to call this in controller?

Muthukannan Kanniappan Over a year ago

The same way you would have called 'addAnswers' function. Inject AnswerService to your controller, then do AnswerService.getAnswers();

Akshaya Over a year ago

it returns with empty array in ng-repeat

Muthukannan Kanniappan Over a year ago

Please share your controller code as well in your question.

PSK · Accepted Answer · 2016-06-14 05:12:25Z

0

If you want to access array outside, it should be set to the service.

Add line

this.answers = answers;

angular.module('myapp')
.service('AnswerService', function() {

    var answers = [];
    this.addAnswers = function(questionId) { 
        answers.push(questionId);
        console.log(answers);
    }
    this.answers = answers;
    return this;
})

answered Jun 14, 2016 at 5:12

PSK

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Comments

Fergus · Accepted Answer · 2016-06-14 05:14:00Z

0

this.answers = answers;

I would return this

answered Jun 14, 2016 at 5:14

Fergus

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Comments

Tassisto · Accepted Answer · 2016-06-14 12:28:09Z

0

You should change your code to this.

angular.module('myapp').service('AnswerService', function() {
var answers = [];
this.addAnswers = function(questionId) { 
    answers.push(questionId);
    console.log(answers);
    return answers;
} })

edited Jun 14, 2016 at 12:28

Tassisto

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answered Jun 14, 2016 at 5:31

zeeshan Qurban

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