AngularJS脚本标记JSON-LD [英] AngularJS script tag JSON-LD
问题描述
你如何创建一个应用程序/ LD + JSON
剧本
标记在AngularJS动态内置JSON对象。
How do you create an application/ld+json
script
tag with a dynamically built JSON object in AngularJS .
这是我需要的脚本标记看起来像
This is what I need the script tag to look like
<script type="application/ld+json">
{
"@context": "http://schema.org",
"@type": "Place",
"geo": {
"@type": "GeoCoordinates",
"latitude": "40.75",
"longitude": "73.98"
},
"name": "Empire State Building"
}
</script>
我曾尝试以下code,但我不能得到它的工作:
I have tried the following code but I cant get it to work:
HTML
<div ng-controller="TestController">
<script type="application/ld+json">
{{jsonId|json}}
</script>
{{jsonId|json}}
</div>
控制器
var myApp = angular.module('application', []);
myApp.controller('TestController', ['$scope', function($scope) {
$scope.jsonId = {
"@context": "http://schema.org",
"@type": "Place",
"geo": {
"@type": "GeoCoordinates",
"latitude": "40.75",
"longitude": "73.98"
},
"name": "Empire State Building"
};
}]);
script标签内的前pression不会执行。
脚本标记之外的前pression正确执行,并显示JSON
The expression inside the script tag does not execute. The expression outside the script tag executes correctly and displays the JSON
请参见的jsfiddle
推荐答案
咖啡我想起了世界杯之后有一个 $ SCE
服务> trustAsHtml 功能。
After a cup of coffee I remembered there is a $sce
service with a trustAsHtml
function.
我创建的接受,便于重复使用一个 JSON
参数指令
I created a directive that accepts a json
parameter for easy re-use
请参阅更新和工作code如下:
Please see updated and working code below:
HTML
<div ng-controller="TestController">
<jsonld data-json="jsonId"></jsonld>
</div>
的JavaScript
Javascript
var myApp = angular.module('application', []);
myApp.controller('TestController', ['$scope', function($scope) {
$scope.jsonId = {
"@context": "http://schema.org",
"@type": "Place",
"geo": {
"@type": "GeoCoordinates",
"latitude": "40.75",
"longitude": "73.98"
},
"name": "Empire State Building"
};
}]).directive('jsonld', ['$filter', '$sce', function($filter, $sce) {
return {
restrict: 'E',
template: function() {
return '<script type="application/ld+json" ng-bind-html="onGetJson()"></script>';
},
scope: {
json: '=json'
},
link: function(scope, element, attrs) {
scope.onGetJson = function() {
return $sce.trustAsHtml($filter('json')(scope.json));
}
},
replace: true
};
}]);
下面是脚本输出的图像
请参阅更新的jsfiddle
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