Iterate over defined elements of a JS array
- by sibidiba
I'm using a JS array to Map IDs to actual elements, i.e. a key-value store. I would like to iterate over all elements. I tried several methods, but all have its caveats:
for (var item in map) {...}
Does iterates over all properties of the array, therefore it will include also functions and extensions to Array.prototype. For example someone…
