Mixed use of AngularJS custom services and filter
In angular, Filter is used to format data. For example, in projects, there are many times when the data taken from the background is displayed directly and the user does not understand its meaning. At this time, we need to format it ourselves before displaying it on the interface. In traditional J, we need a long list of codes and various innuendoes, but the filter provided by angular does require a lot of introduction.
The following will introduce to you the mixed use of angularJS custom services and filter, let’s take a look.
1. Create a custom service "$swl"
var app = angular.module('myApp', []); app.service("$swl", function() { this.after = function(data) { return "("+data + " after,$swl"; }; this.before = function(data) { return "($swl,before " + data+")"; } })
2. Call the custom service through the controller
html code
<div ng-app="myApp" ng-controller="myCtrl"> {{name }} </div>
controller code
app.controller("myCtrl", function($scope, $swl,$timeout) { $scope.name = $swl.before("swl"); $timeout(function(){ $scope.name = $swl.after("swl"); },2000) })
3. with Mixed use of fliter
html code
<div ng-app="myApp" ng-controller="myCtrl"> {{name | before}} </div>
fliter code
app.filter("before",["$swl",function($swl){ return function(data){ return $swl.before("(filter,"+data+")"); } }])

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