blocks|key|4175472|text|你不能只存储函数名，然后当你点击的时候，你可以检查哪个函数是什么，然后调用它，并将函数更新为你想要的函数？|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4175473|如下所示：|4175474|​|4175475|function+functiona(){
++++console.log('called+functiona');
++++document.body.style.background+=+'#aaa';
}

function+functionb(){
++++console.log('called+functionb');
++++document.body.style.background+=+'#fff';
}

$('#example').on("click",+function(ev){
++var+func+=+$(ev.target).attr('data-fn');
++console.log(func);
++window[func]();
});

$('#changer').on("click",+function(ev){
++++//HERE+you+can+change+the+function+will+be+called+based+on+what+you+want+
++++//Here+I+just+changed+it+with+a+simple+if...
++++var+fn+=+$("#example").attr("data-fn");
++++if+(fn+==+'functiona'){
++++++$("#example").attr("data-fn",+"functionb");
++++}else+{
++++++$("#example").attr("data-fn",+"functiona");
++++}
});|code-block|syntax|javascript|4175476|<script+src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div+id='example'+data-fn='functiona'>Click+Me+to+call+function</div>
<button+id='changer'>Change+Function</button>|4175477|4175478|在这里，全局变量窗口存储了您的函数，因此，如果该名称以函数window[stringOfFuncionName]();的形式存在，则按其名称遍历它并调用它应该是可行的|offset|length|style|CODE|4175479|这不是做你需要的事情的最好方法(实际上你并没有完全明确你的最终目标)，但这可能会有所帮助。|4175480|entityMap^0|0|0|0|0|0|0|T|U|0|0^^$0|@$1|2|3|4|5|6|7|X|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|Y|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|Z|8|@]|9|@]|A|$]]|$1|F|3|G|5|H|7|10|8|@]|9|@]|A|$I|J]]|$1|K|3|L|5|H|7|11|8|@]|9|@]|A|$I|J]]|$1|M|3|E|5|6|7|12|8|@]|9|@]|A|$]]|$1|N|3|O|5|6|7|13|8|@$P|14|Q|15|R|S]]|9|@]|A|$]]|$1|T|3|U|5|6|7|16|8|@]|9|@]|A|$]]|$1|V|3|-4|5|6|7|17|8|@]|9|@]|A|$]]]|W|$]]

<p>Couldn't you just store the function name, then when you click you check which function is then call it and update the function to which one you want?</p>

<p>Something like this:</p>

<p><div class="snippet" data-lang="js" data-hide="false" data-console="true" data-babel="false">
<div class="snippet-code">
<pre class="snippet-code-js lang-js prettyprint-override"><code>function functiona(){
    console.log('called functiona');
    document.body.style.background = '#aaa';
}

function functionb(){
    console.log('called functionb');
    document.body.style.background = '#fff';
}

$('#example').on("click", function(ev){
  var func = $(ev.target).attr('data-fn');
  console.log(func);
  window[func]();
});

$('#changer').on("click", function(ev){
    //HERE you can change the function will be called based on what you want 
    //Here I just changed it with a simple if...
    var fn = $("#example").attr("data-fn");
    if (fn == 'functiona'){
      $("#example").attr("data-fn", "functionb");
    }else {
      $("#example").attr("data-fn", "functiona");
    }
});</code></pre>
<pre class="snippet-code-html lang-html prettyprint-override"><code>&lt;script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"&gt;&lt;/script&gt;
&lt;div id='example' data-fn='functiona'&gt;Click Me to call function&lt;/div&gt;
&lt;button id='changer'&gt;Change Function&lt;/button&gt;</code></pre>
</div>
</div>
</p>

<p>Here, the global variable window have your functions stored, so going through it by it's name and calling it, should work, if this name exist as a function <code>window[stringOfFuncionName]();</code></p>

<p>This is not the best way of doing what you need (actually you didn't let completely clear your final objective), but this maybe can help. </p>


blocks|key|4176114|text|您要做的事情在Can+you+set+a+javascript+function+name+as+an+html+attribute?中进行了描述|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|4176115|但我建议你这样解决它：|4176116|​|4176117|$('#button').click(function()+{
++$('#example').off('click.myNamespace')+//+remove+the+previously+assigned+callback
+++++++++++++++.on('click.myNamespace',+creatClickCallback(functionb));+//+register+the+new+callback
});

function+functiona()+{
++console.log('functiona');
}

function+functionb()+{
++console.log('functionb');
}

function+creatClickCallback(functionToCall)+{
++return+function(evt)+{
++++functionToCall()
++}
}

$('#example').on('click.myNamespace',+creatClickCallback(functiona));|code-block|syntax|javascript|4176118|<script+src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div+id='example'>OK</div>
<div+id='button'>button</div>|4176119|4176120|这样可以确保您不会以错误的方式命名函数，因为您将其作为对该函数的实际引用而不是字符串进行传递。|4176121|entityMap|0|LINK|mutability|MUTABLE|url|https://stackoverflow.com/questions/27447755/can-you-set-a-javascript-function-name-as-an-html-attribute^0|7|1O|0|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|Z|8|@]|9|@$A|10|B|11|1|12]]|C|$]]|$1|D|3|E|5|6|7|13|8|@]|9|@]|C|$]]|$1|F|3|G|5|6|7|14|8|@]|9|@]|C|$]]|$1|H|3|I|5|J|7|15|8|@]|9|@]|C|$K|L]]|$1|M|3|N|5|J|7|16|8|@]|9|@]|C|$K|L]]|$1|O|3|G|5|6|7|17|8|@]|9|@]|C|$]]|$1|P|3|Q|5|6|7|18|8|@]|9|@]|C|$]]|$1|R|3|-4|5|6|7|19|8|@]|9|@]|C|$]]]|S|$T|$5|U|V|W|C|$X|Y]]]]

<p>What you want to do is described in <a href="https://stackoverflow.com/questions/27447755/can-you-set-a-javascript-function-name-as-an-html-attribute">Can you set a javascript function name as an html attribute?</a> </p>

<p>But I suggest that you solve it that way:</p>

<p><div class="snippet" data-lang="js" data-hide="false" data-console="true" data-babel="false">
<div class="snippet-code">
<pre class="snippet-code-js lang-js prettyprint-override"><code>$('#button').click(function() {
  $('#example').off('click.myNamespace') // remove the previously assigned callback
               .on('click.myNamespace', creatClickCallback(functionb)); // register the new callback
});

function functiona() {
  console.log('functiona');
}

function functionb() {
  console.log('functionb');
}

function creatClickCallback(functionToCall) {
  return function(evt) {
    functionToCall()
  }
}

$('#example').on('click.myNamespace', creatClickCallback(functiona));</code></pre>
<pre class="snippet-code-html lang-html prettyprint-override"><code>&lt;script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"&gt;&lt;/script&gt;
&lt;div id='example'&gt;OK&lt;/div&gt;
&lt;div id='button'&gt;button&lt;/div&gt;</code></pre>
</div>
</div>
</p>

<p>This way you ensure that you do not accitantily name a function the wrong way, because you pass it as an actual reference to that function instead of a string.</p>


<pre><code>&lt;div id='example' data-fn='functiona'&gt;OK&lt;/div&gt;

$('#button').click function(){
    $('#example').attr('data-fn', functionb');
});

function functiona(){
    console.log('functiona');
}

function functionb(){
    console.log('functionb');
}

$('#example').click(function(){
    // execute function currently stored inside data-fn attribute
});
</code></pre>

<p>Probably everything is clear.<br>
I need dinamically change the function which will be executed by clicking on <code>example</code>.
The current function should be stored inside <code>data-fn</code>.</p>

<p>Any help?</p>


dynamically change assigned click function

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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<div id='example' data-fn='functiona'>OK</div>$('#button').click function(){    $('#example').attr('data-fn', functionb');});function functiona(){    console.lo...

问动态改变分配的点击功能
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