cocoabox · July 14, 2016 13:21
diff --git a/detect_if_function_is_native.js b/detect_if_function_is_native.js
 /**
 * detect if function is native
 * @param {function} func
 * @return {boolean|null} returns true if func is native, false if not, or null if func is not a function
 */
 var isNative = function(func){
  return typeof func!=="function"
    ?null
    :(null!==(""+func.toString()).match(/^\s*function\s*([^\s]+)\s*\{\s*\[native code\]\s*\}\s*$/));
 }
	/**
	* detect if function is native
	* @param {function} func
	* @return {boolean\|null} returns true if func is native, false if not, or null if func is not a function
	*/
	var isNative = function(func){
	return typeof func!=="function"
	?null
	:(null!==(""+func.toString()).match(/^\sfunction\s([^\s]+)\s\{\s\[native code\]\s\}\s$/));
	}
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