What is the most effective method to determine if a given string is suitable for $compile in Angular?

I am currently in the process of creating a directive that is designed to accept a "message" input which may contain HTML and nested Angular directives. In my directive's controller, I am using the following code:

var compiled = $compile(message)($scope);
this.message = $sce.trustAsHtml(compiled.html());

However, I have encountered an issue where the message will not compile if it does not have a valid start and end tag. I am curious if there is an alternative approach or if Angular offers any solutions to address this without resorting to regex.

javascriptangularjs

Answer №1

It's best to avoid parsing or validating HTML directly. Let jQuery/jqLite handle that task for us.

When using angular.element, make sure to include a root element. Wrap your message in a root element, compile and link, then extract the contents:

link: function(scope, element){
    scope.param = "test";
    var message = "foo {{param}} bar";

    var el = angular.element("<div>").append(message);
    var compiled = $compile(el)(scope);

    element.append(compiled.contents());
}

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