运算符优先级 #77

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Twlig opened this issue Mar 27, 2022 · 0 comments

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JavaScript基础篇

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Twlig commented Mar 27, 2022 •

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下表按从最高到最低的优先级列出JavaScript运算符。具有相同优先级的运算符按从左至右的顺序求值

运算符	描述
. [] ()	字段访问、数组下标、函数调用以及表达式分组
++ -- - ~ ! delete new typeof void	一元运算符、返回数据类型、对象创建、未定义值
* / %	乘法、除法、取模
+ - +	加法、减法、字符串连接
<< >> >>>	移位
< <= > >= instanceof	小于、小于等于、大于、大于等于、instanceof
== != === !==	等于、不等于、严格相等、非严格相等
&	按位与
^	按位异或
\|	按位或
&&	逻辑与
\|\|	逻辑或
?:	条件
= oP=	赋值、运算赋值
,	多重求值

参考文章：

[运算符比较级](https://developer.mozilla.org/zh-CN/docs/Web/JavaScript/Reference/Operators/Operator_Precedence)

Twlig added the JavaScript基础篇 label

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