blocks|key|126842|text|Python的pass之所以存在，主要是因为在Python中，空白在块中很重要。在Javascript中，等价物将是在块中不放任何东西，即{}。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|126843|entityMap^0|7|4|1X|2|0^^$0|@$1|2|3|4|5|6|7|H|8|@$9|I|A|J|B|C]|$9|K|A|L|B|C]]|D|@]|E|$]]|$1|F|3|-4|5|6|7|M|8|@]|D|@]|E|$]]]|G|$]]

Python's <code>pass</code> mainly exists because in Python whitespace matters within a block. In Javascript, the equivalent would be putting nothing within the block, i.e. <code>{}</code>.

blocks|key|126857|text|像使用python的pass一样使用//pass|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|126858|像这样：|126859|if(condition){
+++//pass
}|code-block|syntax|javascript|126860|这相当于在块中什么也没有留下，但出于可读性的原因，这是很好的。|126861|来自https://eslint.org/docs/rules/no-empty的引用|126862|entityMap|0|LINK|mutability|MUTABLE|url|https://eslint.org/docs/rules/no-empty^0|A|4|I|6|0|0|0|0|2|12|0|0^^$0|@$1|2|3|4|5|6|7|Y|8|@$9|Z|A|10|B|C]|$9|11|A|12|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|13|8|@]|D|@]|E|$]]|$1|H|3|I|5|J|7|14|8|@]|D|@]|E|$K|L]]|$1|M|3|N|5|6|7|15|8|@]|D|@]|E|$]]|$1|O|3|P|5|6|7|16|8|@]|D|@$9|17|A|18|1|19]]|E|$]]|$1|Q|3|-4|5|6|7|1A|8|@]|D|@]|E|$]]]|R|$S|$5|T|U|V|E|$W|X]]]]

use <code>//pass</code> like python's <code>pass</code>

like:

<pre><code>if(condition){
 //pass
}
</code></pre>

This is equivalent to leaving the block with nothing in it, but is good for readability reasons.

reference from <a href="https://eslint.org/docs/rules/no-empty" rel="noreferrer">https://eslint.org/docs/rules/no-empty</a>

blocks|key|124947|text|空块需要python的pass。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|124948|try:
++++#+something
except+Exception:
++++pass|code-block|syntax|javascript|124949|在javascript中，您可以简单地捕获一个空块。|124950|try+{
++++//+some+code
}+catch+(e)+{
++++//+This+here+can+be+empty
}|124951|entityMap|0|LINK|mutability|MUTABLE|url|http://docs.python.org/release/2.5.2/ref/pass.html^0|B|4|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|U|8|@]|9|@$A|V|B|W|1|X]]|C|$]]|$1|D|3|E|5|F|7|Y|8|@]|9|@]|C|$G|H]]|$1|I|3|J|5|6|7|Z|8|@]|9|@]|C|$]]|$1|K|3|L|5|F|7|10|8|@]|9|@]|C|$G|H]]|$1|M|3|-4|5|6|7|11|8|@]|9|@]|C|$]]]|N|$O|$5|P|Q|R|C|$S|T]]]]

python's <a href="http://docs.python.org/release/2.5.2/ref/pass.html" rel="noreferrer">pass</a> is required for empty blocks.

<pre><code>try:
 # something
except Exception:
 pass
</code></pre>

In javascript you can simply catch an empty block

<pre><code>try {
 // some code
} catch (e) {
 // This here can be empty
}
</code></pre>

blocks|key|126407|text|不幸的是，Javascript没有对应的python+pass。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|126408|例如，在javascript中不可能做这样的事情：|126409|process.env.DEV+?+console.log('Connected..')+:+pass|126410|相反，我们必须这样做：|126411|if+(process.env.DEV)+console.log('Connected..')|126412|使用pass语句的好处之一是，在开发过程中，我们可以从上面的三元运算符示例演变而来，而不必将其转换为完整的if语句。|126413|entityMap^0|R|4|0|0|0|1F|0|0|0|1B|0|2|4|1H|2|0^^$0|@$1|2|3|4|5|6|7|R|8|@$9|S|A|T|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|U|8|@]|D|@]|E|$]]|$1|H|3|I|5|6|7|V|8|@$9|W|A|X|B|C]]|D|@]|E|$]]|$1|J|3|K|5|6|7|Y|8|@]|D|@]|E|$]]|$1|L|3|M|5|6|7|Z|8|@$9|10|A|11|B|C]]|D|@]|E|$]]|$1|N|3|O|5|6|7|12|8|@$9|13|A|14|B|C]|$9|15|A|16|B|C]]|D|@]|E|$]]|$1|P|3|-4|5|6|7|17|8|@]|D|@]|E|$]]]|Q|$]]

Javascript does not have a python <code>pass</code> equivalent, unfortunately.

For example, it is not possible in javascript to do something like this:

<code>process.env.DEV ? console.log('Connected..') : pass</code>

Instead, we must do this:

<code>if (process.env.DEV) console.log('Connected..')</code>

The advantage of using the <code>pass</code> statement, among others, is that in the course of the development process we can evolve from the above ternary operator example in this case without having to turn it into a full <code>if</code> statement.

blocks|key|126997|text|我知道这是一个非常古老的问题，但我想这样做也是可能的。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|126998|您可以声明一个包含字符串(或其他内容)的常量。|126999|const+pass+=+'pass';|code-block|syntax|javascript|127000|const+pass+=+null;可能也不错。|offset|length|style|CODE|127001|if+(condition)+{
+++pass
}+else+{
+++console.log('hi!');
}|127002|但是也要注意，这可能是一个更好的选择。|127003|if+(condition)+{}
else+{
++++console.log('cool!');
}|127004|Python没有括号来确定代码块在哪里，所以空块会抛出错误(这就是为什么要将pass语句放在空块中)。我回答这个问题所做的就是创建一个常量，就像它是一个语句一样使用它。这个概念非常接近python用省略号替换pass的方式。|127005|python中的某些人更喜欢使用...而不是pass。|127006|if+condition:
++++...
else:
++++print('Python!')|127007|entityMap^0|0|0|0|0|I|0|0|0|0|12|4|0|G|3|M|4|0|0^^$0|@$1|2|3|4|5|6|7|12|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|13|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|14|8|@]|9|@]|A|$G|H]]|$1|I|3|J|5|6|7|15|8|@$K|16|L|17|M|N]]|9|@]|A|$]]|$1|O|3|P|5|F|7|18|8|@]|9|@]|A|$G|H]]|$1|Q|3|R|5|6|7|19|8|@]|9|@]|A|$]]|$1|S|3|T|5|F|7|1A|8|@]|9|@]|A|$G|H]]|$1|U|3|V|5|6|7|1B|8|@$K|1C|L|1D|M|N]]|9|@]|A|$]]|$1|W|3|X|5|6|7|1E|8|@$K|1F|L|1G|M|N]|$K|1H|L|1I|M|N]]|9|@]|A|$]]|$1|Y|3|Z|5|F|7|1J|8|@]|9|@]|A|$G|H]]|$1|10|3|-4|5|6|7|1K|8|@]|9|@]|A|$]]]|11|$]]

I know this is a very old question but i guess that is also possible to do something like this. 
You can declare a constant that contains a string (or something else).
<pre><code>const pass = 'pass';
</code></pre>
<code>const pass = null;</code> may also be good.
<pre><code>if (condition) {
 pass
} else {
 console.log('hi!');
}
</code></pre>
However note also that this may be a better option.
<pre><code>if (condition) {}
else {
 console.log('cool!');
}
</code></pre>
Python doesn't have brackets to determine where the blocks of code are like javascript, so an empty block throws error (that's why you put the <code>pass</code> statement in empty blocks). What i have done by answering this question is just creating a constant using it as if it was a statement. The concept is really near to python's substitution of pass with ellipsis. 
Someone in python prefers to use <code>...</code> instead of <code>pass</code>.
<pre><code>if condition:
 ...
else:
 print('Python!')
</code></pre>

blocks|key|2682543|text|在某些情况下，pass可以仅为;|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|2682544|现实生活中的例子可以是：|2682545|var+j;
for+(j+=+i+%2B+1;+j+<+binstrN.length+&&+binstrN[j]+!=+1;+j%2B%2B)+{
}
let+count+=+j+-+i;|code-block|syntax|javascript|2682546|等同于|2682547|var+j;
for+(j+=+i+%2B+1;+j+<+binstrN.length+&&+binstrN[j]+!=+1;+j%2B%2B);
let+count+=+j+-+i;|2682548|这里我们尝试将j移到下一个'1'，而i在它之前已经是'1‘，因此count给出了字符串二进制字符串binstrN中前两个’1‘之间的距离|2682549|entityMap^0|7|4|F|1|0|0|0|0|0|7|1|I|1|W|5|1D|7|0^^$0|@$1|2|3|4|5|6|7|U|8|@$9|V|A|W|B|C]|$9|X|A|Y|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|Z|8|@]|D|@]|E|$]]|$1|H|3|I|5|J|7|10|8|@]|D|@]|E|$K|L]]|$1|M|3|N|5|6|7|11|8|@]|D|@]|E|$]]|$1|O|3|P|5|J|7|12|8|@]|D|@]|E|$K|L]]|$1|Q|3|R|5|6|7|13|8|@$9|14|A|15|B|C]|$9|16|A|17|B|C]|$9|18|A|19|B|C]|$9|1A|A|1B|B|C]]|D|@]|E|$]]|$1|S|3|-4|5|6|7|1C|8|@]|D|@]|E|$]]]|T|$]]

In some cases <code>pass</code> can just be <code>;</code>
A real life example can be:
<pre><code>var j;
for (j = i + 1; j &lt; binstrN.length &amp;&amp; binstrN[j] != 1; j++) {
}
let count = j - i;
</code></pre>
is same as
<pre><code>var j;
for (j = i + 1; j &lt; binstrN.length &amp;&amp; binstrN[j] != 1; j++);
let count = j - i;
</code></pre>
Here we are trying to move <code>j</code> to next '1', while <code>i</code> was already at a '1' before it, hence <code>count</code> gives the distance between first two '1's in the string binary string <code>binstrN</code>

blocks|key|2682790|text|你可以创建一个实际上什么也不做的函数。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2682791|const+pass+=+()+=>+{}|code-block|syntax|javascript|2682792|try+{
++pass()
}+else+{
++console.log('helloworld!')
}|2682793|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|L|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|D|7|M|8|@]|9|@]|A|$E|F]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

you could create a function that actually does nothing.
<pre><code>const pass = () =&gt; {}
</code></pre>
<pre><code>try {
 pass()
} else {
 console.log('helloworld!')
}
</code></pre>

blocks|key|126945|text|如果您只想在JS中的三元运算符或If语句中使用pass运算符，则可以这样做：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|126946|a+===+true+&&+console.log('okay')|code-block|syntax|javascript|126947|您也可以使用%7C%7C运算符，但您应该知道%7C%7C是&&的对立面。然后，如果你想在函数或块中使用Pass，就像我们在Python中做的那样：|126948|def+Func():+pass|126949|在JS中，您应该将块保留为空，如下所示：|126950|+if(){+
++++console.log('ok')
++++}else{}|126951|最后，Python中没有大括号，所以这是我们使用pass的主要原因。|126952|entityMap^0|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|S|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|T|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|U|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|V|8|@]|9|@]|A|$E|F]]|$1|K|3|L|5|6|7|W|8|@]|9|@]|A|$]]|$1|M|3|N|5|D|7|X|8|@]|9|@]|A|$E|F]]|$1|O|3|P|5|6|7|Y|8|@]|9|@]|A|$]]|$1|Q|3|-4|5|6|7|Z|8|@]|9|@]|A|$]]]|R|$]]

If you want to just use the pass operator in a ternary operator or just in an if statement in JS, you can do this:
<pre><code>a === true &amp;&amp; console.log('okay')
</code></pre>
You can use also use || operator but you should know that the || is the opposite of &amp;&amp;. Then if you want to use Pass in a function or a block in general as we do in Python like this:
<pre><code>def Func(): pass
</code></pre>
In JS you should just leave the block empty as this:
<pre><code> if(){ 
 console.log('ok')
 }else{}
</code></pre>
In the end, there are no braces in Python, so this is the main reason why we have a pass.

blocks|key|2682810|text|传递if语句的一种简单方法是输入一个字符串。“通行证”更易读。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2682811|​|2682812|if(true){
'pass'
}|code-block|syntax|javascript|2682813|2682814|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|L|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|M|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|N|8|@]|9|@]|A|$G|H]]|$1|I|3|C|5|6|7|O|8|@]|9|@]|A|$]]|$1|J|3|-4|5|6|7|P|8|@]|9|@]|A|$]]]|K|$]]

An easy way for passing an if statement is entering a string. 'pass' is more readible.
<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>if(true){
'pass'
}</code></pre>
</div>
</div>

blocks|key|2682468|text|我发现我得到了一个带有空花括号的错误，而不是我在里面放了一个分号，基本上是一样的：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2682469|try+{+//something;+}+catch+(err)+{+;+}|code-block|syntax|javascript|2682470|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

I've found that I get an error with empty braces, instead I put a semicolon in there, basically the same thing:

<pre><code>try { //something; } catch (err) { ; }
</code></pre>

I am looking for a JavaScript equivalent of the Python:
<code>pass</code> statement that does not run the function of the <code>...</code> notation?
Is there such a thing in JavaScript?

Is there a JavaScript equivalent of the Python pass statement that does nothing?

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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我正在寻找一个与Python相当的JavaScript：不运行...表示法函数的pass语句？在JavaScript里有这样的东西吗？

问有没有什么也不做的Python pass语句的JavaScript等价物？
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问有没有什么也不做的Python pass语句的JavaScript等价物？
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