Binding array to directive variable in AngularJS

Question

I'm trying to get an array into a template so I can use the individuals values thereof. My problem is that the attribute turns into a string once inside my template so it's no longer accessible as {{var[0]}} and that will instead return the first character of the "string", usually "["

Here is a simplified setup of the data:

"varForward": ["100", "1"], "varBack": ["1", "100"] 

Here is a simplified portion of the HTML file that interacts with that data:

<my-customer-vars value="{{varForward}}">     </address-numbers> <my-customer-vars value="{{varBack}}">     </address-numbers> 

and lastly here is a portion that is SUPPOSED to replace the custom tag with my own stuff:

directive('myCustomerVars', function($compile) {     return {         restrict: 'E',         scope: {             value: "@"         },         template:         '<div>'+           '<p class="body-text">Some stuff goes here</p>'+           '<input type="text" name="firstinput" value="{{value[0]}}"> - '+           '<input type="text" name="secondinput" value="{{value[1]}}">'+         '</div>',         replace: true     } }); 

So here I am, if I try using value[0] I get [ If I try to get value[1] I get " and so on. Is there any help on using arrays inside the template of a directive?

Answer 1

You need to change the "@" into "=" and to pass in the array without the {{ }}

like this:

<my-customer-vars value="varForward">     </my-customer-vars> <my-customer-vars value="varBack">     </my-customer-vars> 

directive:

directive('myCustomerVars', function($compile) {     return {         restrict: 'E',         scope: {             value: "="         },         template:         '<div>'+           '<p class="body-text">Some stuff goes here</p>'+           '<input type="text" name="firstinput" value="{{value[0]}}"> - '+           '<input type="text" name="secondinput" value="{{value[1]}}">'+         '</div>',         replace: true     } }); 

This is happening because every expression inside a directuve attribute defined by a @ gets evaluated as only as a string, and in the other way it gets evaluated as binding expression. (with 2 way binding, so be careful).