The special $ character in angularjs does not seem to be effective in filtering by object

Angularjs documentation states that the filter method should be able to accept an object as a parameter. This object allows you to specify the column to filter by, or use the special character "$" to search through all properties. While the filter works successfully when I specify a specific column name for filtering, it fails to work properly when utilizing the "$" to filter across all columns. I am unsure if I am using it correctly. Can anyone provide guidance on how to resolve this issue?

var filterObject = { $ : 'Jeff'};
$scope.myFilteredData = $filter('filter')($scope.myRawData, filterObject);
javascriptjsonangularjsfilterdataset

Answer №1

When using Angular filters, you will need an array and a filter object of some type to make it work. For more information on this, please refer to https://docs.angularjs.org/api/ng/filter/filter. By default, when calling $filter('filter'), it will return the built-in generic/simple filter. Your first argument should therefore be an array of objects with properties, while your second argument can be an object similar to what has been demonstrated.

var app = angular.module('app', []);

app.controller('ExampleCtrl', 
function ($scope, $filter)  {
        var x = [{name : 'Tim'}, {'name'  : 'Jim'}, {'name'  : 'Jeff'}];

        console.log($filter('filter')(x, {$ : 'Jeff'}));
});

You can also view an example at http://jsfiddle.net/wg6mp56y/1/

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