Is there a simple way in Angular to display the label of an item from an array without looping through it? I have an array of color options:
$scope.colors=[
{id:"0",label:"blue"},
{id:"1",label:"red"},
{id:"2",label:"green"}
]
And my data object stores the id of a selected color option:
$scope.data={
color:"1",
otherproperty:""
}
Instead of displaying the id, I want to show the label to the user. Is there an easy (angular) way to achieve this?
{{data.color.label}}
To implement the Angular approach, you can utilize ng-repeat and filter. This involves looping over the Array but with various options that necessitate some form of iteration.
<div ng-repeat="color in colors | filter:{ 'id': data.color}:true">
{{ color.label }}
</div>
By setting the strict comparison of the Filter to 'true', only the id with an exact match will be selected.
To find the specific object with an ID that matches $scope.data.color, you can use the following code:
var selectedObject = $scope.objects.filter(function( obj ) {
return obj.id === $scope.data.color;
});
The string value of the label for this object can be accessed using selectedObject.label.
Consider exploring another approach, it might provide some assistance.
https://jsfiddle.net/kkdvvkxk/.
An alternative method is to utilize $filter within the controller.
Controller :
var myApp = angular.module('myApp', []);
function MyCtrl($scope, $filter) {
$scope.colors = [{
id: "0",
label: "blue"
}, {
id: "1",
label: "red"
}, {
id: "2",
label: "green"
}]
$scope.data = {
color: "1",
otherproperty: ""
}
$scope.getLabel = function(colorId) {
return $filter('filter')($scope.colors, { id: colorId }[0].label;
}
}
HTML :
{{ getLabel(data.color)}}
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