Using arrays in option values

Question

I am using AngularJS and what i want to do is to use a select to select an item, but then have access to an array that can produce other information.

Eg:

<select name="manufacturer" id="manufacturer" ng-model="manufacturer" class="form-control">
    <option value="{{ A[0] }}">{{ A[0] }}</option>
    <option value="{{ B[0] }}">{{ B[0[ }}</option>
    <option value="{{ C[0] }}">{{ C[0] }}</option>
</select>

// NAME, SKU, PRICE, WEIGHT

$scope.A = ["Ferarri","FER1",128000,1.5];
$scope.B = ["Ford","FOR1",13000,1];
$scope.C = ["Renault","REN1",13000,1];

So, I can easily print the 'name' in the select for the user to know what they're selecting, but once selected, I want to have full use of that array. So, if the user chooses 'Ford' I want to be able to have something like $scope.car[2] for the price of the car, whatever their selection might be which would give me '13000'.

What would be the best way to do this?

Thanks.

you really should consider switching to objects instead of arrays whenever possible while using angular. then, you can pass an array of car objects to ng-options, and select one easily. also, having these as objects would make working with them make more sense; i.e. $scope.car.price is much clearer than $scope.car[2]. — Claies
– Claies, Commented Aug 15, 2015 at 19:38

Chrillewoodz · Accepted Answer · 2015-08-15 20:52:08Z

3

Something like this will give you access to the entire object:

$scope.cars = [
  {name: "Ferarri", short: "FER1", price: 128000, num: 1.5}
  {name: "Ford", short: "FOR1", price: 13000, num: 1}
  {name: "Renault", short: "REN1", price: 13000, num: 1}
]

<select ng-model="car" ng-options="car as car.name for car in cars"></select>

Then you can use it in your templates like so:

<h1>{{car.price}}</h1>

I'm using ng-options to achieve this which is very flexibel, have a look here in the official documentation: https://docs.angularjs.org/api/ng/directive/ngOptions

edited Aug 15, 2015 at 20:52

answered Aug 15, 2015 at 19:40

Chrillewoodz

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8 Comments

devon93 Over a year ago

Thanks for taking the time to answer. I am now using an object rather than an array. I have populated the selects and all works well. The issue is when i choose Ferrari in the dropdown, I can use {{ ferrari.name }} but anything else gives me nothing i.e {{ ferrari.price }}

Chrillewoodz Over a year ago

@devon93 Use car.price not ferrari.price, since car is the object you're accessing and not "ferrari", "ferrari" is only a name property.

devon93 Over a year ago

Ah yeah sorry thats what i meant.

Chrillewoodz Over a year ago

@devon93 Are you trying to use the value in your template or in the controller?

Chrillewoodz Over a year ago

@devon93 I forgot the ng-model sorry, I updated answer, now it should work.

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