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angularJS 入门基础

2018年06月18日  | 移动技术网IT编程  | 我要评论

angular 　　

所有用到的库, 全部用的cdn：

复制代码 代码如下:

    <script src=">
    <script src=">
    <link href="" rel="stylesheet">
    <script src="" type="text/javascript"></script>

.angular的数据绑定实例,这个是最基础的,angular的所有枝叶全部从这里开始:.

复制代码 代码如下:

<!doctype html public "-//w3c//dtd xhtml 1.0 transitional//en" "">
<html xmlns="">
<head>
<meta http-equiv="content-type" content="text/html; charset=utf-8" />
<title>angular</title>
　　<meta http-equiv="x-ua-compatible" content="ie=edge,chrome=1">
    <script src=">
    <script src=">
    <link href="" rel="stylesheet">
    <script src="" type="text/javascript"></script>
</head>
<body ng-app="app">
    <script type="text/javascript">
           var app = angular.module("app",[]);
    </script>
    <div class="panel panel-default">
        <div class="panel-heading">
            angular最强大的东西,数据的绑定binding
        </div>
        <div class="panel-body">
            <div id="bind" ng-controller="bf">
                <input type="text" ng-model="data" />
                {{data}}
                <script>
                    app.controller("bf", function($scope) {
                        $scope.data = "testdata";
                        //$scope.$apply();
                    });
                </script>
            </div>
        </div>
    </div>
</body>
</html>

通过angular,展示数组对应的数据;.

复制代码 代码如下:

<!doctype html public "-//w3c//dtd xhtml 1.0 transitional//en" "">
<html xmlns="">
<head>
<meta http-equiv="content-type" content="text/html; charset=utf-8" />
<title>angular</title>
　　<meta http-equiv="x-ua-compatible" content="ie=edge,chrome=1">
    <script src=">
    <script src=">
    <link href="" rel="stylesheet">
    <script src="" type="text/javascript"></script>
</head>
<body ng-app="app">
    <script type="text/javascript">
           var app = angular.module("app",[]);
    </script>
    <div class="panel panel-default">
        <div class="panel-heading">
            通过angular,展示数组对应的数据;
        </div>
        <div class="panel-body">
            <div id="arr-bind" ng-app="arr-app" ng-controller="arrcon">
                <style>
                    .s{
                        color:#f00;
                    }
                    li{
                        cursor: pointer;
                    }
                </style>
                <ul>
                    <li ng-repeat="i in lists" ng-click="bered($index)" ng-class="{s : $index == flag}">
                        {{i.name}}----{{i.age}}
                    </li>
                </ul>
                <script>
                    //angular.module("arr-app", []);
                    function arrcon($scope) {
                        $scope.flag = 0;
                        $scope.bered = function(i) {
                            $scope.flag = i;
                        };
                        $scope.lists = [
                            {name : "hehe",
                                age:10},
                            {
                                name : "xx",
                                age : 20
                            },
                            {
                                name : "yy",
                                age : 2
                            },
                            {
                                name : "jj",
                                age : 220
                            }
                        ]
                    };
                </script>
            </div>
        </div>
    </div>
</body>
</html>

.数据过滤器的demo：

复制代码 代码如下:

<!doctype html public "-//w3c//dtd xhtml 1.0 transitional//en" "">
<html xmlns="">
<head>
<meta http-equiv="content-type" content="text/html; charset=utf-8" />
<title>angular</title>
　　<meta http-equiv="x-ua-compatible" content="ie=edge,chrome=1">
    <script src=">
    <script src=">
    <link href="" rel="stylesheet">
    <script src="" type="text/javascript"></script>
</head>
<body ng-app="app">
    <script type="text/javascript">
           var app = angular.module("app",[]);
    </script>
    <div class="panel panel-default">
        <div class="panel-heading">
            数据过滤器;
        </div>
        <div class="panel-body" ng-controller="filte">
            {{sourcode}}
            <br>
            {{sourcode | up}}
        </div>
        <script>
            function filte($scope) {
                $scope.sourcode = "hehe lala dudu oo zz";
            };
            app.filter("up" ,function() {
                return function(ipt) {
                    return ipt.replace(/ (\w)/g,function($0,$1) {
                        return " "+$1.touppercase();
                    });
                }
            });
        </script>
    </div>
</body>
</html>

.factory工厂, $provider, service等等都是一样样的, 不要感觉很难, 其实就是看出一个数据模型或者实例就好了;：

复制代码 代码如下:

<!doctype html public "-//w3c//dtd xhtml 1.0 transitional//en" "">
<html xmlns="">
<head>
<meta http-equiv="content-type" content="text/html; charset=utf-8" />
<title>angular</title>
　　<meta http-equiv="x-ua-compatible" content="ie=edge,chrome=1">
    <script src=">
    <script src=">
    <link href="" rel="stylesheet">
    <script src="" type="text/javascript"></script>
</head>
<body ng-app="app">
    <script type="text/javascript">
           var app = angular.module("app",[]);
    </script>
    <div id="factory" class="panel panel-default">
        <div class="panel-heading">
            angular中的factory就相当于一个公用的实例方法,可以理解为一个多个控制器都可以用的函数;
        </div>
        <div  class="panel-body" ng-controller="factory">
            {{json}}
            <script>
                app.factory("ff", function() {
                    return {
                        "noting" : "json"
                    };
                });
                app.controller("factory", function($scope, ff) {
                    $scope.json = ff;
                });
            </script>
        </div>
    </div>
    <div class="panel panel-default">
        <div class="panel-title">
            angular的指令;
        </div>
        <div class="panel-body">
            <heh>do you content for?</heh>
            <script>
                app.directive("heh", function() {
                    return {
                        restrict : "ae",
                        replace : true,
                        transclude : true,
                        template : '<div> <button class="btn-danger" ng-transclude></button></div>'
                    };
                })
            </script>
        </div>
    </div>

</body>
</html>

.ng-switch指令的使用(这个跟模板很想的,就是我们常见的点击隐藏和显示tab插件的angular首先):：

复制代码 代码如下:

<!doctype html public "-//w3c//dtd xhtml 1.0 transitional//en" "">
<html xmlns="">
<head>
<meta http-equiv="content-type" content="text/html; charset=utf-8" />
<title>angular</title>
　　<meta http-equiv="x-ua-compatible" content="ie=edge,chrome=1">
    <script src=">
    <script src=">
    <link href="" rel="stylesheet">
    <script src="" type="text/javascript"></script>
</head>
<body ng-app="app">
    <script type="text/javascript">
           var app = angular.module("app",[]);
    </script>
    <div class="panel panel-default">
        <div class="panel-heading">
            ng-switch的使用
        </div>
        <div class="panel-body" ng-controller="sw">
            <div ng-init="a=2">
                <ul ng-switch on="a">
                    <li ng-switch-when="1">1</li>
                    <li ng-switch-when="2">2</li>
                    <li ng-switch-default>other</li>
                </ul>
              </div>
              <div>
                  <button ng-click="a=1" class="btn btn-primary">test</button>
                  <button ng-click="a=2" class="btn btn-info">test</button>     
                  <button ng-click="a=3" class="btn btn-warning">test</button>
              </div>
        </div>
        <script type="text/javascript">
            app.controller("sw", function($scope) {
            });
        </script>
    </div>
</body>
</html>

ng-src和ng-href;

复制代码 代码如下:

<!doctype html public "-//w3c//dtd xhtml 1.0 transitional//en" "">
<html xmlns="">
<head>
<meta http-equiv="content-type" content="text/html; charset=utf-8" />
<title>angular</title>
　　<meta http-equiv="x-ua-compatible" content="ie=edge,chrome=1">
    <script src=">
    <script src=">
    <link href="" rel="stylesheet">
    <script src="" type="text/javascript"></script>
</head>
<body ng-app="app">
    <script type="text/javascript">
           var app = angular.module("app",[]);
    </script>
    <div class="panel panel-default">
        <div class="panel-heading">
            ng-src和ng-href的使用(如果使用src或者href的话,html初始化的时候就会加载,肯定是不行的)
        </div>
        <div class="panel-body" ng-controller="srccon">
            <a ng-href="{{logo}}" >
                <img ng-src="{{logo}}" />
            </a>
        </div>
        <script type="text/javascript">
            app.controller("srccon", function($scope) {
                $scope.logo = "";
            });
        </script>
    </div>
</body>
</html>

如何操作页面的样式,这个直接改绑定的数据模型就好了：

复制代码 代码如下:

    <div class="panel panel-default">
        <div class="panel-heading">
            angular对样式进行操作;(jq是手动选择元素对元素样式进行操作,angular提供了一种更屌的方法,把元素的属性赋值给一个变量,你只要改变这个变量即可)
        </div>
        <div class="panel-body">
            <hehe id="wh" ng-style="{width: w + 'px', height: h + 'px', backgroundcolor: '#364'}">
                hehe--o(^▽^)o哇;
            </hehe>
        </div>
        <script type="text/javascript">
            app.directive("hehe", function() {
                function compile() {
                };
                return {
                    link : function($scope, $element) {
                        var obj = angular.element($element);
                        //obj.find不好用;
                        var add = obj[0].getelementsbyclassname("add")[0];
                        var reduce = obj[0].getelementsbyclassname("reduce")[0];
                        angular.element(add).bind("click", function(){
                            $scope.h = $scope.h+10;
                            apply();
                        })
                        angular.element(reduce).bind("click", function(){
                            $scope.h = $scope.h-10;
                            apply();
                        });
                        function apply() {
                            $scope.$apply();
                        }
                        return compile;
                    },
                    controller : function($scope) {
                        $scope.w = 200;
                        $scope.h = 50;
                        //$scope.$apply();
                    },
                    restrict: 'ae',
                    replace : true,
                    scope : "=ng-style",
                    transclude : true,
                    template : '<div><div ng-transclude></div><button class="btn btn-default add">+</button><button class="btn btn-default reduce">-</button></div>'
                }
            })
        </script>
    </div>

angular中的模板如何使用,这个要配合路由器使用比较叼:

复制代码 代码如下:

<!doctype html public "-//w3c//dtd xhtml 1.0 transitional//en" "">
<html xmlns="">
<head>
<meta http-equiv="content-type" content="text/html; charset=utf-8" />
<title>angular</title>
　　<meta http-equiv="x-ua-compatible" content="ie=edge,chrome=1">
    <script src=">
    <script src=">
    <link href="" rel="stylesheet">
    <script src="" type="text/javascript"></script>
</head>
<body ng-app="app">
    <script type="text/javascript">
           var app = angular.module("app",[]);
    </script>
    <div class="panel panel-default">
        <div class="panel-heading">
            使用模板
        </div>
        <div class="panel-body" ng-controller="ngtpl">
                        <!---这个type要声明准确-->
            <script type="text/ng-template" id="tpl">
                {{ver}}
            </script>
                            <!---tpl是一个定值不是变量，要给变量要在scope中进行定义---->
            <div ng-include src="'tpl'"></div>
            <div class="well">
                <button ng-click="chan()">change</button>
            </div>
        </div>
        <script type="text/javascript">
            app.controller("ngtpl", function($scope) {
                function hehe(str) {
                    str = _.shuffle(str);
                    return str.join("")
                };
                $scope.ver = "var——ver--heehe";
                $scope.chan = function() {
                    $scope.ver = hehe( $scope.ver );
                };
            });
        </script>
    </div>
</body>
</html>

如何使用$scope.$watch实时改变绑定界面的模板:

复制代码 代码如下:

<!doctype html public "-//w3c//dtd xhtml 1.0 transitional//en" "">
<html xmlns="">
<head>
<meta http-equiv="content-type" content="text/html; charset=utf-8" />
<title>angular</title>
　　<meta http-equiv="x-ua-compatible" content="ie=edge,chrome=1">
    <script src=">
    <script src=">
    <link href="" rel="stylesheet">
    <script src="" type="text/javascript"></script>
</head>
<body ng-app="app">
    <script type="text/javascript">
           var app = angular.module("app",[]);
    </script>
    <div class="panel panel-default">
        <div class="panel-heading">
            <span class="label label-danger">update</span>angular的通知数据更新三种方式$scope.$digest(),$scope.$apply(),以及通过$scope.$watch监听进行更新;
        </div>
        <div class="panel-body" ng-controller="apply">
            {{hehe}}
            <input type="text" ng-model="m0" />
            <div class="well">
                the value set by $scope.$watch ==>> {{wat}}
            </div>
            <br>
            <button ng-click="up()" class="btn btn-default">
                applay;
            </button>
        </div>
        <script type="text/javascript">
            app.controller("apply", function($scope) {
                $scope.hehe = "lll________xxx";
                $scope.m0 = 1;
                ss = $scope;
                $scope.up = function() {
                    $scope.hehe = $scope.m0;
                    //可以,但是给了提示的报错, 谁知道为甚毛?
                    //$scope.$apply();
                    $scope.$digest();
                };
                             //给$scope.m0变量是无效的;
                $scope.$watch("m0", function(va) {
                    $scope.wat = va;
                })
            });
        </script>
    </div>
</body>
</html>

angular中自己定义的工具方法

复制代码 代码如下:

<!doctype html public "-//w3c//dtd xhtml 1.0 transitional//en" "">
<html xmlns="">
<head>
<meta http-equiv="content-type" content="text/html; charset=utf-8" />
<title>angular</title>
　　<meta http-equiv="x-ua-compatible" content="ie=edge,chrome=1">
    <script src=">
    <script src=">
    <link href="" rel="stylesheet">
    <script src="" type="text/javascript"></script>
</head>
<body ng-app="app">
    <script type="text/javascript">
           var app = angular.module("app",[]);
    </script>
    <div class="panel panel-default">
        <div class="panel-heading">
            angular中的工具方法列表
        </div>
        <div class="panel-body">
            <ul  class="nav nav-pills nav-stacked">
              <li role="presentation"><a href="###">angular.bind</a></li>
              <li role="presentation"><a href="###">angular.bootstrap</a></li>
              <li role="presentation"><a href="###">angular.copy</a></li>
              <li role="presentation"><a href="###">angular.element</a></li>
              <li role="presentation"><a href="###">angular.equals</a></li>
              <li role="presentation"><a href="###">angular.extend</a></li>
              <li role="presentation"><a href="###">angular.foreach</a></li>
              <li role="presentation"><a href="###">angular.fromjson</a></li>
              <li role="presentation"><a href="###">angular.identity</a></li>
              <li role="presentation"><a href="###">angular.injector</a></li>
              <li role="presentation"><a href="###">angular.isarray</a></li>
              <li role="presentation"><a href="###">angular.isdate</a></li>
              <li role="presentation"><a href="###">angular.isdefined</a></li>
              <li role="presentation"><a href="###">angular.iselement</a></li>
              <li role="presentation"><a href="###">angular.isfunction</a></li>
              <li role="presentation"><a href="###">angular.isnumber</a></li>
              <li role="presentation"><a href="###">angular.isobject</a></li>
              <li role="presentation"><a href="###">angular.isstring</a></li>
              <li role="presentation"><a href="###">angular.isundefined</a></li>
              <li role="presentation"><a href="###">angular.lowercase</a></li>
              <li role="presentation"><a href="###">angular.module</a></li>
              <li role="presentation"><a href="###">angular.noop</a></li>
              <li role="presentation"><a href="###">angular.reloadwithdebuginfo</a></li>
              <li role="presentation"><a href="###">angular.tojson</a></li>
              <li role="presentation"><a href="###">angular.uppercase</a></li>
            </ul >
            <div class="well">
                这些工具方法跟其他库差不多;
                angular.element是anguarlite选择元素的小jq;
                <br>
                angular.module是模块元素的方法;
            </div>
        </div>
    </div>
</body>
</html>

ng-transclude的使用(这个是官方的案例)，代码如下:

复制代码 代码如下:

<!doctype html public "-//w3c//dtd xhtml 1.0 transitional//en" "">
<html xmlns="">
<head>
<meta http-equiv="content-type" content="text/html; charset=utf-8" />
<title>angular</title>
　　<meta http-equiv="x-ua-compatible" content="ie=edge,chrome=1">
    <script src=">
    <script src=">
    <link href="" rel="stylesheet">
    <script src="" type="text/javascript"></script>
</head>
<body ng-app="app">
    <script type="text/javascript">
           var app = angular.module("app",[]);
    </script>
    <div class="panel panel-default">
        <div class="panel-heading">
            ng-transclude的使用(这个是官方的案例):
        </div>
        <div class="panel-body" ng-controller="examplecontroller">
            <div>
              <input ng-model="title"><br>
              <textarea ng-model="text"></textarea> <br/>
              <pane title="{{title}}">{{text}}</pane>
            </div>
        </div>
        <script type="text/javascript">
        app.directive('pane', function(){
              return {
                restrict: 'e',
                transclude: true,
                scope: { title:'@' },
                template: '<div style="border: 1px solid black;">' +
                            '<div style="background-color: gray">{{title}}</div>' +
                            '<ng-transclude></ng-transclude>' +
                          '</div>'
              };
          })
          .controller('examplecontroller', ['$scope', function($scope) {
            $scope.title = 'lorem ipsum';
            $scope.text = 'neque porro quisquam est qui dolorem ipsum quia dolor...';
          }]);
        </script>
    </div>
</body>
</html>

一下验证邮箱准确性的例子:

复制代码 代码如下:

<!doctype html public "-//w3c//dtd xhtml 1.0 transitional//en" "">
<html xmlns="">
<head>
<meta http-equiv="content-type" content="text/html; charset=utf-8" />
<title>angular</title>
　　<meta http-equiv="x-ua-compatible" content="ie=edge,chrome=1">
    <script src=">
    <script src=">
    <link href="" rel="stylesheet">
    <script src="" type="text/javascript"></script>
</head>
<body ng-app="app">
    <script type="text/javascript">
           var app = angular.module("app",[]);
    </script>
    <div class="panel panel-default">
        <div class="panel-heading">
            ngpaste以及ngmouseup和ngkeyup,ngmodeloptions....等方法参考官方的使用,要用查api就好了,(官方的要fq哦;)
        </div>
        <script src="https://yearofmoo.github.io/ngmessages/angular-messages.js"></script>
        <div class="panel-body" ng-controller="fromvaild">
            如果不用ng-message组件的错误提示如下;
        <form name="userform">
          <div class="field">
            <label for="emailaddress">enter your email address:</label>
            <input type="email" name="emailaddress" ng-model="data.email" required />
            <!-- this stuff is way too complex -->
            <div ng-if="userform.emailaddress.$error.required" class="error">
              you forgot to enter your email address...
            </div>
            <div ng-if="!userform.emailaddress.$error.required &&
                         userform.emailaddress.$error.email" class="error">
              you did not enter your email address correctly...
            </div>
          </div>
          <input type="submit" />
        </form>
        <br>
        <a href="https://yearofmoo.github.io/ngmessages/">老外写的demo</a>
        </div>
        <script type="text/javascript">
            app.controller("fromvaild", function($scope) {
                //$scope.myfield.$error = { minlength : true, required : false };
            })
        </script>
    </div>
</body>
</html>

settimeout和setinterval都是经过angular包装过的，返回的是延迟对象的实例:

复制代码 代码如下:

<!doctype html public "-//w3c//dtd xhtml 1.0 transitional//en" "">
<html xmlns="">
<head>
<meta http-equiv="content-type" content="text/html; charset=utf-8" />
<title>angular</title>
　　<meta http-equiv="x-ua-compatible" content="ie=edge,chrome=1">
    <script src=">
    <script src=">
    <link href="" rel="stylesheet">
    <script src="" type="text/javascript"></script>
</head>
<body ng-app="app">
    <script type="text/javascript">
           var app = angular.module("app",[]);
    </script>
    <div class="panel panel-default">
        <div class="panel-heading">
            $timeout和$interval,这两个服务;
        </div>
        <div class="panel-body" ng-controller="st">
            <div class="list-group">
                <a href="#" class="list-group-item active">
                    <h4 class="list-group-item-heading">setinterval</h4>
                    <p class="list-group-item-text">
                    $interval(fn, delay, [count], [invokeapply]);
                    </p>
                </a>
                <a href="#" class="list-group-item">
                    <h4 class="list-group-item-heading">timeout</h4>
                    <p class="list-group-item-text">
                    $timeout(fn, [delay], [invokeapply]);
                    </p>
                </a>
            </div>
            <div class="progress">
                <div class="progress-bar" role="progressbar" aria-valuenow="60" aria-valuemin="0" aria-valuemax="100" style="width: 0%;">
                    0%
                </div>
            </div>
            <button class="btn-default btn" ng-click="prog()">
                start
            </button>
        </div>
        <script type="text/javascript">
            app.controller("st", function($scope,$element,$interval) {
                var $el = $($element[0]).find(".progress-bar");
                console.log(arguments);
                //使用angular.element选中的元素用find找不到东西;
                $scope.prog = function() {
                    var df = $interval(function() {
                        var val = parseint($el.html())+4;
                        if(val>=104) $interval.cancel(df);
                        $el.html( val+"%" ).width(val+"%");
                    },100);
                    console.log(df)
                    //console.log(aa = $interval)
                };
            });
        </script>
    </div>
</body>
</html>

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