Question

Is there a good built-in way that I can find whether value is a array or not?

One simple check I can think of is as follows, but I don’t like it:

if(ele.push){ /* its array it has push method */ }

I mean i would like know if something like pseudo-code below exists. typeof doesn’t seems to be applicable, as it only returns “object” (though that makes sense).

function x(ele){ if(isArray(ele)){ /* dosomething() */ } }

Answer 1

http://www.andrewpeace.com/javascript-is-array.html

<script type="text/javascript">
  function is_array(input){
    return typeof(input)=='object'&&(input instanceof Array);
  }
</script>