checking string value in ng-if statement

I would like to check the value of the property of an object and would like to check the data of string to compare.

<div ng-if="results.dataType === 'textTable'"> 
     This text belongs in a table. 
</div>

So far all the divs appear with the text in the body where only two divs should display it.

Is there anything wrong with my ng-if statement and string comparison?