Javascript: Checking if an object has no properties or if a map/associative-array is empty [duplicate]

javascript map associative-array is-empty object-property

Try this:

function isEmpty(map) {   for(var key in map) {     if (map.hasOwnProperty(key)) {        return false;     }   }   return true;}

Your solution works, too, but only if there is no library extending the Object prototype. It may or may not be good enough.

CodeHunter