JavaScript操作符逻辑的相关内容

文章 2023-08-19 来自：开发者社区

JavaScript -- 操作符和逻辑运算

算数操作符+ : 加- ：减* ：乘/ ：除%：取余递增和递减1、递增++a与a++都是对a进行递增的操作区别++a先返回递增之后的a的值a++先返回a的原值，再返回递增之后的值2、递减同理赋值操作符简单赋值：=复合赋值：+=、-=、*=、/=、%=复合运算可以简化我们的操作，比如var a = 5; 要给a加上5，正常情况我们会这样写 a = a + 5；，如果....

文章 2022-05-21 来自：开发者社区

JavaScript操作符之逻辑操作符

逻辑操作符一共三个，!（逻辑非）、&&（逻辑与）、||（逻辑或）。1 !（逻辑非）这个操作符始终返回布尔值，无论什么数据类型，逻辑非操作符始终先将操作数据转换为布尔值，之后在进行取反。console.log(!false); // true console.log(!0); // true复制遵循：如果操作数是对象，则返回 false。如果操作数是空字符串，则返回 tru...

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更新时间 2024-02-10 09:31:28

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