In my HTML document, I have a ng-class attribute with specific conditions. How can I access the attributes for twitter and yahoo within this code block?
ng-class="{twitter: 2 < id , yahoo : 2 > id}"
The typeof ng-class is set to object, but attempting to access it using elem["ng-class"]["twitter"] does not produce the expected result.
Even using JSON.parse(obj) fails to work properly.
An error occurs: Uncaught SyntaxError: Unexpected token t in JSON at position 1
That is actually not an object, it consists of a pair of conditionals within an ngClass directive. The element will be assigned the class twitter if the expression 2 < id evaluates to true, and will have the class yahoo if 2 > id is true (if id == 2, none of these classes will be applied).
Given that this is not an object, there are no properties that can be accessed from it.
Remember to include quotation marks and parentheses for object values, as shown below:
ng-class="{'twitter': (2 < id), 'yahoo': (2 >id)}"
By making this adjustment, you will avoid encountering the dreaded Uncaught SyntaxError!
Everything is functioning as expected, as demonstrated in this Plunkr example
Angular interprets ngClass by assigning class values to the element's attribute.
Attempting to access it using
elem["ng-class"]["twitter"]proves to be ineffective.
To verify if the DOM element contains the "twitter" class, simply query the DOM directly.
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