Angular.js如何从json文件呈现HTML标签 [英] Angular.js How to render a HTML tag from json file

问题描述

我正在尝试解析角度页面中的html值，不确定我在做什么错，我在控制台中收到此错误:

I am trying to parse html value in my angular page, not sure what I am doing wrong, I am getting this error in my console:

app.js:13 Uncaught SyntaxError:Unexpected token)

app.js:13 Uncaught SyntaxError: Unexpected token )

app.js

var App = angular.module('App', []);

App.controller('ProjectCtrl', function($scope, $http) {
  $http.get('app/test.json')
       .then(function(res){
          $scope.projects = res.data;
        });

       App.filter('to_trusted', ['$sce', function($sce){
    return function(text) {
        return $sce.trustAsHtml(text);
    };
});

test.json

[
  { "icon": "<i class="fa fa-github fa-3x" aria-hidden="true"></i>", "name": "lovelycss" },
  { "icon": "<i class="fa fa-github fa-3x" aria-hidden="true"></i>", "name": "lovely-icons" }
]

html:

<div ng-controller="ProjectCtrl">
  <ul>
    <li ng-repeat="project in projects">
     <div ng-bind-html="'{{project.icon}}' | to_trusted"></div>- <em>{{project.name}}</em>
    </li>
  </ul>
</div>

我要存档的内容是: http://jsfiddle.net/JfGVE/1547/

我想要一个json来加载图标和文本.

I want a json loading the icons and the text.

我希望现在一切都会清楚.

I hope now this will be clear.

推荐答案

在控制器声明中缺少}，在过滤器声明中缺少[:

You are missing a } in your controller declaration and a [ in your filter declaration:

var App = angular.module('App', []);

App.controller('ProjectCtrl', function($scope, $http) {
    $http.get('app/test.json')
         .then(function(res){
            $scope.projects = res.data;
          });
}); // You are missing a '}' here

App.filter('to_trusted', ['$sce', function($sce){
    return function(text) {
        return $sce.trustAsHtml(text);
    };
}]); // You are missing a ']' here

您还必须编辑JSON以转义引号"

You will also have to edit your JSON to escape your quotes "

[
    {
        "icon": "<i class=\"fa fa-github fa-3x\" aria-hidden=\"true\"></i>",
        "name": "lovelycss"
    }, {
        "icon": "<i class=\"fa fa-github fa-3x\" aria-hidden=\"true\"></i>",
        "name": "lovely-icons"
    }
]

并且您传递给ng-bind-html的表达式也是错误的.由于单引号'，您正在将文字字符串'{{project.icon}}'传递给过滤器.您必须删除引号和花括号，因为ng-bind-html指令需要使用表达式作为参数.

And the expression you are passing to ng-bind-html is also wrong. Because of the single quotes ' you are passing a literal string '{{project.icon}}' to the filter. You have to remove the quotes and the curly braces, because the ng-bind-html directive needs an expression as a parameter.

<div ng-controller="ProjectCtrl">
  <ul>
    <li ng-repeat="project in projects">
     <div ng-bind-html="project.icon | to_trusted"></div>- <em>{{project.name}}</em>
    </li>
  </ul>
</div>

这篇关于Angular.js如何从json文件呈现HTML标签的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！