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** 乘方运算符 #48

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lovelmh13 opened this issue Aug 23, 2020 · 0 comments

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lovelmh13 commented Aug 23, 2020 •

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在mdn里中文版没有**运算符，需要看英文版

**运算符是右结合的
4 ** 3 ** 2 === 4 ** (3 ** 2) // 最终结果是 262144，而不是 4096

++i ** 30
2 ** 30 //正确
-2 ** 30 //报错

如果要用-2这样的一元表达式，需要用() (-2)**2

表达式和运算符
 Exponentiation (**)

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