2 + 2

[PeacePeach]

Console
> 2 + 2
> 4
> "2" + "2"
> "22"
> 2 + 2 - 2
> 2
> "2" + "2" - "2"
> 20

[DOLLOR]

@aragakiyuii

我试了下 python 类似的操作：
print('python is shit!' if 0.1 + 0.2 != 0.3 else 'python is awesome!')
print('python is shit!' if True+True+True == 3 else 'python is awesome!')
print('python is shit!' if True-True == 0 else 'python is awesome!')
print('python is shit!' if True == 1 and not(True is 1) else 'python is awesome!')

emm……

[drydiy]

JS 月经贴
+ 字符串优先级高。- 都转成数字类型运算。