angular的DEMO(用来练习和顺便看看)

　　inflector(辅助) 将用户输入的字符串转化成驼峰或者空格或者底线的小插件;

　　这个是一个小的过滤器, 平常也是用不到的, 合格是过滤器的代码:

        app.filter("inflector", function() {
            var reg = new RegExp("","gi");
            return function(value ,type) {
                switch( type ) {
                    case "underscore" :
                        value = value.replace(/[\s-_]/gi,"_");
                    break;
                    case "variable" :
                        value = value.replace(/[\s-_](\w)/gi,function($0,$1){
                            return $1.toUpperCase();
                        });
                    break;
                    default : 
                        value = value.replace(/[\s-_]/gi," ");
                    break;
                };
                return value;
            };
        });

 

　　下面的全部的代码，点击按钮即可在线运行：

<html ng-app="app">
    <head>
        <meta charset="utf-8" />
        <script src="http://cdn.bootcss.com/jquery/2.1.1-rc2/jquery.min.js"></script>
        <script src="http://cdn.bootcss.com/angular.js/1.3.0-beta.13/angular.min.js"></script>
    </head>
<body ng-controller="test0Controller">
    <label>
        <input type="radio" value="humanize" ng-model="inflectorType"> Humanize (Default)</label>
    <label>
        <input type="radio" value="underscore" ng-model="inflectorType"> Underscore</label>
    <label>
        <input type="radio" value="variable" ng-model="inflectorType"> Variable</label>

    <input placeholder="Enter some text to inflect" ng-model="inflectorText">
    <p>{{inflectorText|inflector:inflectorType}}</p>
    
    <script>
        //初始化用户模块;
        var app = angular.module('app', []);
        app.controller("test0Controller",function($scope){
            $scope.inflectorText = "normal test_hehe-nice";
            $scope.inflectorType = "humanize";
        });
        app.filter("inflector", function() {
            var reg = new RegExp("","gi");
            return function(value ,type) {
                switch( type ) {
                    case "underscore" :
                        value = value.replace(/[\s-_]/gi,"_");
                    break;
                    case "variable" :
                        value = value.replace(/[\s-_](\w)/gi,function($0,$1){
                            return $1.toUpperCase();
                        });
                    break;
                    default : 
                        value = value.replace(/[\s-_]/gi," ");
                    break;
                };
                return value;
            };
        });
    </script>
</body>
</html>

 

 

　　这一个实例主要想表达的是通过自定义的指令绑定事件, angular官方提供的指令也是这样子的：

<html ng-app="app">
    <head>
        <meta charset="utf-8" />
        <script src="http://cdn.bootcss.com/jquery/2.1.1-rc2/jquery.min.js"></script>
        <script src="http://cdn.bootcss.com/angular.js/1.3.0-beta.13/angular.min.js"></script>
    </head>
<body>
    <div ng-controller="kepressController">
        <textarea ui-keypress="keypressCallback">
        </textarea>    
    </div>
    <script>
        //初始化用户模块;
        var app = angular.module('app', []);
        app.controller("kepressController",function($scope){
            $scope.keypressCallback = function(e) {
                e.target.value += "enter";
                console.log(e)
                alert("输入enter");
                e.preventDefault();
            };
        });

        app.directive("uiKeypress",function($parse) {
            return {
                scope : {
                    keypress : "&uiKeypress"
                },
                compile : function(elem, attrs) {

                    return function(scope, $elem , $attrs ) {
                        $($elem).bind("keypress", function(ev) {
                            if( +ev.charCode === 13 ) {
                                scope.keypress()(ev);
                            };
                        });
                    }
                }
            }
        });

    </script>
</body>
</html>

　　

　　这个又是一个过滤器的例子，直接通过一个闭包创建一个排序的函数，简单粗暴：

<html ng-app="app">
    <head>
        <meta charset="utf-8" />
        <script src="http://cdn.bootcss.com/jquery/2.1.1-rc2/jquery.min.js"></script>
        <script src="http://cdn.bootcss.com/angular.js/1.3.0-beta.13/angular.min.js"></script>
    </head>
<body>
    <div ng-controller="test0Controller">
        <select ng-model="sortType">
            <option value="firstName">firstName</option>
            <option value="id">id</option>
            <option value="gender">gender</option>
        </select>
        <div>
            {{items | sort : sortType | json}}
        </div>
    </div>
    <script>
        //初始化用户模块;
        var app = angular.module('app', []);
        app.controller("test0Controller",function($scope){
            $scope.inflectorText = "normal test_hehe-nice";
            $scope.inflectorType = "humanize";
            $scope.items = [
                { firstName: 'Dean', lastName: 'Sofer',
                id: 1, gender: 'Male' },
                { firstName: 'Dean', lastName: 'Kuntz',
                id: 2, gender: 'Male' },
                { firstName: 'Peter', lastName: 'Piper',
                id: 3, gender: 'Female' },
                { firstName: 'Peter', lastName: 'Darwin',
                id: 4, gender: 'Male' },
                { firstName: 'Janet', lastName: 'Piper',
                id: 5, gender: 'Female' },
                { firstName: 'Dan', lastName: 'Doyon',
                id: 6, gender: 'Male' },
                { firstName: 'Andy', lastName: 'Joslin',
                id: 1, gender: 'Male' },
            ];
        });
        //排序的指令;
        app.filter("sort",function() {
            var sortClosure = function( name ){
                return function(a,b) {
                    if( a[name] < b[name] ){
                        return -1;
                    }else{
                        return 1;
                    }
                }
            };
            return function(value, type) {
                var sortFn = sortClosure(type);
                //return value.sort(sortFn);
                return angular.copy(value).sort(sortFn);
            };
        });

    </script>
</body>
</html>

　　　总结：angular入门很简单的，但是提升比较难吧

posted @ 2014-12-24 11:29  方方和圆圆  阅读(2485)  评论(0)  编辑  收藏  举报

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