angular provides an API that can copy objects - copy(source, destination), which will perform deep copy of the source object.
The following points should be paid attention to when using:
Let’s take a look at the usage examples:
<html><head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <script src="http://apps.bdimg.com/libs/angular.js/1.2.16/angular.min.js"></script></head><body ng-app="copyExample"> <div ng-controller="ExampleController"> <form novalidate> Name: <input type="text" ng-model="user.name" /><br /> E-mail: <input type="email" ng-model="user.email" /><br /> Gender: <input type="radio" ng-model="user.gender" value="male" /> male <input type="radio" ng-model="user.gender" value="female" /> female <br /> <button ng-click="reset()">RESET</button> <button ng-click="update(user)">SAVE</button> </form> <pre>form = {{user | json}}</pre> <pre>master = {{master | json}}</pre> </div> <script> angular.module('copyExample', []) .controller('ExampleController', ['$scope', function($scope) { $scope.master= {}; var test1; console.log(angular.copy(test1));//undefined var test3=null; console.log(angular.copy(test2));//undefined var test2 = "a"; // console.log(angular.copy(test2,test2));//error!! $scope.update = function(user) { // Example with 1 argument $scope.master= angular.copy(user); }; $scope.reset = function() { // Example with 2 arguments angular.copy($scope.master, $scope.user); console.log($scope.master); console.log($scope.user); }; $scope.reset(); }]); </script></body></html>The above is a compilation of the information of the copy of the AngularJS API. We will continue to add relevant information in the future. Thank you for your support for this website!