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<!DOCTYPE html> <html> <script src="/lib/angular-1.4.8.min.js"></script> <body> <div ng-app="myApp"> Convert the number 255, using a custom made service inside a custom made filter: <h1>{{255 | myFormat}}</h1> </div> <script> var app = angular.module('myApp', []); app.service('hexafy', function() { this.myFunc = function (x) { return x.toString(16); } }); app.filter('myFormat',['hexafy', function(hexafy) { return function(x) { return hexafy.myFunc(x); }; }]); </script> </body> </html>