I've already mentioned this above, please look up falsy and truthy values in JS. Null, false, 0, undefined and "" can be treated pretty much the same in 99% of

I've already mentioned this above, please look up falsy and truthy values in JS. Null, false, 0, undefined and "" can be treated pretty much the same in 99% of your JS code. JS is after-all still a dynamic language, and there is nothing stopping you from making use of its dynamic features.