在JavaScript中简单地替换逻辑的赋值运算符？ [英] Simple substitute of assignment operators of logical ones in JavaScript?

问题描述

JavaScript已赋值运算符对应算术： + = ， - = ， * = ， / = ，％= 。

JavaScript has assignment operators corresponding to arithmetic ones: +=, -=, *=, /=, %=.

JavaScript也有赋值运算符对应按位：<< = ， >> = ，>>> = ，& = ， ^ = ， | = 。

JavaScript also has assignment operators corresponding to bitwise ones: <<=, >>=, >>>=, &=, ^=, |=.

但它没有赋值运算符对应逻辑： || = ，&& = 。

然后，我不能做这样的事情

Then, I can't do things like

aVeryLongVariableIdontWantToRepeat ||= 1;

在另一个问题它解释了为什么 JS Java没有这样的运算符。我想这对JS来说是一样的。

In this other question it's explained why JS Java doesn't have such operators. I guess it's the same for JS.

但我想知道是否有一种简单的方法来模仿它们，避免

But I want to know if there is a simple way to emulate them, avoiding

aVeryLongVariableIdontWantToRepeat = aVeryLongVariableIdontWantToRepeat || 1;

推荐答案

不，没有。我觉得应该有更多这个答案，但实际上，就是这样。最短版本的 a = a || x 是... a = a || x 。

No, there isn't. I feel like there should be more to this answer, but really, that's it. The shortest version of a = a || x is ... a = a || x.

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