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PORecursion in Angular directives
 

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    <p>There are a couple of popular recursive angular directive Q&amp;A's out there, which all come down to one of the following solutions:</p> <ul> <li>manually incrementally 'compile' HTML based on runtime scope state <ul> <li><a href="http://jsfiddle.net/galloc/KNM4q/1/" rel="noreferrer">example 1</a> [<a href="https://stackoverflow.com/questions/11854514/is-it-possible-to-make-a-tree-view-with-angular">stackoverflow</a>]</li> <li><a href="http://jsfiddle.net/IgorMinar/CHVbb/423/" rel="noreferrer">example 2</a> [<a href="https://github.com/angular/angular.js/wiki/JsFiddle-Examples" rel="noreferrer">angular jsfiddles page</a>]</li> </ul></li> <li>don't use a directive at all, but a &lt;script&gt; template which refers to itself <ul> <li><a href="http://jsfiddle.net/ganarajpr/vzvmS/3/" rel="noreferrer">example 1</a> [<a href="https://groups.google.com/forum/#!topic/angular/I5Z5oglW6Xw" rel="noreferrer">google groups</a>]</li> </ul></li> </ul> <p><strong>The first one</strong> has the problem that you can't remove previously compiled code unless you comprehensibly manage the manual compile process. <strong>The second approach</strong> has the problem of... not being a directive and missing out on its powerful capabilities, but more urgently, it can't be parameterised the same way a directive can be; it's simply bound to a new controller instance.</p> <p>I've been playing with manually doing an <code>angular.bootstrap</code> or <code>@compile()</code> in the link function, but that leaves me with the problem of manually keeping track of elements to remove and add.</p> <p>Is there a good way to have a parameterized recursive pattern that manages adding/removing elements to reflect runtime state? That is to say, a tree with a add/delete node button and some input field whose value is passed down a node's child nodes. Perhaps a combination of the second approach with chained scopes (but I have no idea how to do this)?</p>
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