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执行下面的代码后，在控制台输出的y为__________。 #255

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pwstrick opened this issue Jul 16, 2019 · 2 comments

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JavaScript

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pwstrick commented Jul 16, 2019 •

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执行下面的代码后，在控制台输出的y为__________。

var y,
  x = 1;
y = x+++x;

pwstrick added the JavaScript label

zlccns commented Sep 24, 2020

var x = 1;
y 这里拆解成两个部分：
y = x++
y = y + x
首先 x++ 等于 2，而 x 等于 1，所以 y = 2 + 1 ,结果等于 3

fyqwzj commented May 10, 2021

3

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