使用Javascript：如何获得一个函数里面的父项？ [英] Javascript: How to get the parent key inside a function?

问题描述

我有一些功能，存储在一个集合/数组并想拿到钥匙（函数名），无需重新键入它。有没有访问任何一小段路？

  VAR functions_collection = {
    function_x：功能（）{
        变量名称=function_x;
        //名称= this.key; ＆LT;  - 如何拿到钥匙/函数名function_x？        //一些code，如：
        $（。function_x .button）VAL（）;        警报（名）;
    }
}
 

编辑：我想避免重新输入函数本身和preFER里面的function_x来称呼它this.key

抱歉提前奇特的话题，并感谢！

解决方案：很多很好的答案，但我只是在寻找这个剪断：

  Object.keys（本）
 

解决方案

要获取的对象键的名称，你可以使用 Object.getOwnPropertyNames（本）或新的浏览器只是 Object.keys（本），这将让你所有的数组和任何键​​这个对象：

  VAR functions_collection = {
    function_x：功能（）{
        变种名称= Object.keys（本）;
        的console.log（名）;
    }
}
 

FIDDLE

I've some functions, stored in a collection/array and would like to get the key (function-name) without retyping it. Is there any short way to access it?

var functions_collection = {
    "function_x": function() {
        var name = "function_x";
        // name = this.key; <- how to get the key/function-name "function_x"?

        // some more code like:
        $(".function_x .button").val();

        alert(name);
    }
}

Edit: I'd like to avoid retyping the "function_x" inside the function itself and prefer to call it like this.key.

Sorry for the weird topic and thanks in advance!

Solution: A lot of good answers, but I was just looking for this snipped:

Object.keys(this)

解决方案

To get the name of the objects keys, you can use Object.getOwnPropertyNames(this) or in newer browsers just Object.keys(this), and that will get you an array of all and any keys the this object has :

var functions_collection = {
    function_x: function() {
        var name = Object.keys(this);
        console.log(name);
    }
}

FIDDLE

这篇关于使用Javascript：如何获得一个函数里面的父项？的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！