jaimeagudo/flatten.html

## flatten.html
<!DOCTYPE html>
<html>
<head>
<meta name="description" content="flatten implementation">
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width">
  <title>JS Bin</title>
</head>
<body>


<script id="jsbin-source-javascript" type="text/javascript">
var ar=[[1,2,[3],[[[[["2.3"]]]]]],4,4.5,null];
var r=[1,2,3,4];
var flatten=function(a){
    var output = [];

    if(Array.isArray(a))
      a.forEach(function(value){
        if (Array.isArray(value)) {
          output=output.concat(flatten(value))
        } else if(Math.floor(value) === value){
          output.push(value);
        }
      });

    return output;
}
console.log(flatten(ar));
console.log(flatten([]));
console.log(flatten());
console.log(flatten(1));</script></body>
</html>
	<!DOCTYPE html>
	<html>
	<head>
	<meta name="description" content="flatten implementation">
	<meta charset="utf-8">
	<meta name="viewport" content="width=device-width">
	<title>JS Bin</title>
	</head>
	<body>


	<script id="jsbin-source-javascript" type="text/javascript">
	var ar=[[1,2,[3],[[[[["2.3"]]]]]],4,4.5,null];
	var r=[1,2,3,4];
	var flatten=function(a){
	var output = [];

	if(Array.isArray(a))
	a.forEach(function(value){
	if (Array.isArray(value)) {
	output=output.concat(flatten(value))
	} else if(Math.floor(value) === value){
	output.push(value);
	}
	});

	return output;
	}
	console.log(flatten(ar));
	console.log(flatten([]));
	console.log(flatten());
	console.log(flatten(1));</script></body>
	</html>