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
天道酬勤