javascript如何获取函数名称和参数方法实例详解

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Function.prototype.getName = function(){

    return this.name || this.toString().match(/function\\s*([^(]*)\\(/)[1]

}

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var getFnName = function(callee){

      var _callee = callee.toString().replace(/[\\s\\?]*/g,""),

      comb = _callee.length >= 50 ? 50 :_callee.length;

      _callee = _callee.substring(0,comb);

      var name = _callee.match(/^function([^\\(]+?)\\(/);

      if(name && name[1]){

        return name[1];

      }

      var caller = callee.caller,

      _caller = caller.toString().replace(/[\\s\\?]*/g,"");

      var last = _caller.indexOf(_callee),

      str = _caller.substring(last-30,last);

      name = str.match(/var([^\\=]+?)\\=/);

      if(name && name[1]){

        return name[1];

      }

      return "anonymous"

};

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function  ee(){

      //+++++++++++++++++++++++++++++++++

      var fnname =getFnName(arguments.callee)

      //+++++++++++++++++++++++++++++++++

      alert(fnname)

    };

ee();

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function getFuncName(_callee)

{

 var _text = _callee.toString();

 var _scriptArr = document.scripts;

 for (var i=0; i<_scriptArr.length; i++)

 {

  var _start = _scriptArr[i].text.indexOf(_text);

  if (_start != -1)

  {

   if (/^function\\s*\\(.*\\).*\\r\\n/.test(_text))

   {

    var _tempArr = _scriptArr[i].text.substr(0, _start).split('\\r\\n');

    return _tempArr[_tempArr.length - 1].replace(/(var)|(\\s*)/g, '').replace(/=/g, '');

   }

   else

    return _text.match(/^function\\s*([^\\(]+).*\\r\\n/)[1];

  }

 }

}

function a()

{

 return getFuncName(arguments.callee);

}

var b = function()

{

 return getFuncName(arguments.callee);

}

window.alert(a());

window.alert(b());

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function test(){

for(var i=0;i<arguments.length;i++) document.write(arguments[i]);

}

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<script language="javascript">

var obj = new Object();

obj.myname = "我是对象";

obj.pro2 = "23";

obj.pro3 = "abcdeg"; php程序员站

for (items in obj){

 document.write("属性:"+items+"的值是 ("+ obj[items] +")");

 document.write("<br>");

}

</script>