Question

Im trying to call a method that will add or subtract 1 from a given span based on whether they already have it favorited or not (basically they favorite/unfavorite a resource and a little counter says “8 people favorited this” will be updated)

I want to write it short hand in the statement though rather than writing all kinds of if statements before the function, i thought there may be a fancy smarter way to do it.

this code obviously doesnt work but it should give you a gist of what im trying to say

updateFavoritesSpan( this, if ($(this).hasClass('starred')) 1 );    

declaration:

function updateFavoritesSpan(element, isFavorite) {
    $(element);
}  

Answer 1

Just try this:

updateFavoritesSpan( this, $(this).hasClass('starred') );   

.hasClass() always return Boolean value, if found then true else false.

There is also another one called .is() and it will use like:

updateFavoritesSpan( this, $(this).is('.starred') );