获取当前类的声明内容

发布于 2024-12-10 16:17:41 字数 448 浏览 0 评论 0原文

我正在编写一个类来操作一些innerHTML & div 的 onclick 标签，其中放置了一些函数来调用类中的某些内容，但是，因为在单个页面上将多次使用该类。

我想知道是否有可能在课堂上弄清楚那个特定物体被贴上的标签是什么？

function Bob() {
    this.test = function()
    {
        alert('test');
    }
    this.Bob = function()
    {
        element.onClick = function() {(some piece of code).test();};
        element.innerHTML = "<a href=\"" + (some piece of code) + ".test();\">Test</a>";
    }
}

原文

I am writing a class which manipulates some innerHTML & onclick tags of a div, which puts some function in it that is calls something within the class, however, as there are going to be more than one use of the class on a single page.

I was wondering if it was possible within the class to workout what that particular object had been labelled?

function Bob() {
    this.test = function()
    {
        alert('test');
    }
    this.Bob = function()
    {
        element.onClick = function() {(some piece of code).test();};
        element.innerHTML = "<a href=\"" + (some piece of code) + ".test();\">Test</a>";
    }
}

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可爱暴击 2024-12-17 16:17:41

function Bob() {}
Bob.prototype.test = function () { 
  /* do things */ 
};
Bob.prototype.Bob = function () {
  element.addEventListener("click", function () {
    this.test();
  }.bind(this));
  toArray(element.childNodes).forEach(function (node) {
    element.removeChild(node);
  });
  var button = document.create("button");
  button.classList.add("button-style");
  element.appendChild(button);
  button.addEventListener("click", function () {
    this.test();
  }.bind(this));
};

您想使用 .bind 将函数绑定到 `thisContext

function Bob() {}
Bob.prototype.test = function () { 
  /* do things */ 
};
Bob.prototype.Bob = function () {
  element.addEventListener("click", function () {
    this.test();
  }.bind(this));
  toArray(element.childNodes).forEach(function (node) {
    element.removeChild(node);
  });
  var button = document.create("button");
  button.classList.add("button-style");
  element.appendChild(button);
  button.addEventListener("click", function () {
    this.test();
  }.bind(this));
};

You want to use .bind to bind functions to a `thisContext

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温折酒 2024-12-17 16:17:41

function Bob() {
    var self = this;

    this.test = function()
    {
        alert('This is the Bob class');
    }

    element.onClick = function() {
       self.test();
    };
}

由于闭包的工作方式，即使 Bob 构造函数返回后，“self”变量仍将在该元素的 onclick 范围内。

只需让不同的类在测试函数内返回不同的警报消息

function Bob() {
    var self = this;

    this.test = function()
    {
        alert('This is the Bob class');
    }

    element.onClick = function() {
       self.test();
    };
}

Due to how closures work the "self" variable will still be inscope within that element's onclick even after the Bob constructor returns.

Simply have different classes return different alert messages inside the test function

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