Passing array via attribute to AngularJS directive

Question

I'm currently having a problem when passing an array to a directive via an attribute of that directive. I can read it as a String but i need it as an array so this is what i came up with but it doesn't work. Help anyone? thks in advance

Javascript::

app.directive('post', function($parse){
    return {
        restrict: "E",
        scope:{
            title: "@",
            author: "@",
            content: "@",
            cover: "@",
            date: "@"
        },
        templateUrl: 'components/postComponent.html',
        link: function(scope, element, attrs){
            scope.tags = $parse(attrs.tags)
        }
    }
}

HTML::

<post title="sample title" tags="['HTML5', 'AngularJS', 'Javascript']" ... >

score 62 · Accepted Answer · edited May 23 '17 at 12:26

62

If you're accessing this array from your scope, i.e. loaded in a controller, you can just pass the name of the variable:

Binding array to directive variable in AngularJS

Directive:

scope:{
        title: "@",
        author: "@",
        content: "@",
        cover: "@",
        date: "@",
        tags: "="
    },

Template:

<post title="sample title" tags="arrayName" ... >

edited May 23 '17 at 12:26

Community

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answered Apr 30 '13 at 02:26

Alex Osborn

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What if it is an inline array: `tags="[1 ,2 ,3]"` ? Edit: I found my answer here: https://stackoverflow.com/q/20811527/3328979 – Arashsoft Jun 13 '17 at 18:26
tags is undefined when i do `console.log(scope.tags)`. what could be wrong – Abhi Jul 18 '17 at 13:44

score 4 · Answer 2 · answered May 28 '16 at 19:50

you can also have to use $scope instead of attrs. then you will get array object, otherwise you will get an string.

     scope:{
            title: "@",
            author: "@",
            content: "@",
            cover: "@",
            date: "@",
            tags: "="
        },


link: function(scope, element, attrs){
            scope.tags = scope.tags
        }

Passing array via attribute to AngularJS directive

2 Answers2

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