The same question from here.

[How to add attribute without value](https://stackoverflow.com/questions/19669731/how-to-add-attribute-without-value)

This time, I want to create an input with AngularJS attribute, to use it as a directive.

Here is what I want:

```
<input ng-angular-abc />

```

This is what the TagBuilder generated:

```
<input ng-angular-abc=""/>

```

I have tried this, but none works:

```
tagBuilder.MergeAttribute("ng-angular-abc", "");
tagBuilder.MergeAttribute("ng-angular-abc", null);
tagBuilder.MergeAttribute("ng-angular-abc", "ng-angular-abc");

```