ECMAScript6 AngularJS 过滤器 [英] ECMAScript6 AngularJS Filter
问题描述
我在一个项目中使用 ECMAScript6 并尝试创建一个角度过滤器.以下是我的尝试,但是我在控制台中收到以下错误:无法设置未定义的属性PassFilter"
我是 ES6 和 Angular 的新手.由于遗留限制,我不得不以这种方式引导 angular.
myAngularModule = angular.module("MyModule");angular.element(document).ready(function() {var myDiv = $("#myAngularDiv");angular.bootstrap(myDiv, ["MyModule"]);});myAngularModule.filter('PassFilter', APP.filters.PassFilter);/* 过滤器在一个单独的文件中:*/类 PassFilter {构造函数(输入){var split = input.split('');var 结果 = "";for (var i = 0; i < split.length; i++) {结果+=*";}返回结果;}}APP.filters.PassFilter = PassFilter;
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script><div id="myAngularDiv"><输入类型=密码"ng-model=密码"><span>{{密码 |PassFilter}}</span>
Angular 中的过滤器函数不采用 class
而是采用 过滤器工厂函数
.这意味着如果您使用 ES6,您可以使用 lambda 的(箭头函数)来实现过滤器.
myAngularModule.filter('PassFilter', ()=> {返回(输入)=>{var split = input.split('');var 结果 = "";for (var i = 0; i < split.length; i++) {结果+=*";}返回结果;}});
I am using ECMAScript6 in a project and am trying to create an Angular Filter. Below is my attempt, however I am getting the following error in the console: Cannot set property 'PassFilter' of undefined
I am new to both ES6 and Angular. I had to bootstrap angular that way due to legacy limitations.
myAngularModule = angular.module("MyModule");
angular.element(document).ready(function() {
var myDiv = $("#myAngularDiv");
angular.bootstrap(myDiv, ["MyModule"]);
});
myAngularModule.filter('PassFilter', APP.filters.PassFilter);
/* Filter is in a separate file: */
class PassFilter {
constructor(input) {
var split = input.split('');
var result = "";
for (var i = 0; i < split.length; i++) {
result += "*";
}
return result;
}
}
APP.filters.PassFilter = PassFilter;
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script>
<div id="myAngularDiv">
<input type="password" ng-model="password">
<span>{{password | PassFilter}}</span>
</div>
Filter function in Angular does not take a class
but a filter factory function
.
This implies if you are using ES6 you can use lambda's (arrow function) to implement the filter.
myAngularModule.filter('PassFilter', ()=> {
return (input)=> {
var split = input.split('');
var result = "";
for (var i = 0; i < split.length; i++) {
result += "*";
}
return result;
}
});
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