JavaScript笔记运算符的相关内容

文章 2023-11-15 来自：开发者社区

【javascript入门笔记（4）表达式与运算符

个人名片：作者简介：一名大一在校生，web前端开发专业个人主页：python学不会第一次写博客，写的不好望指正学习目标: 坚持每一次的学习打卡什么是javascript表达式？✨表达式是由运算元和运算符构成，并产生运算结果的语法结构。它也可以是各种类型的数据、变量和运算符的集合。✨表达式分为简单表达式(Primary Expression)和复杂表达式(Member Expression)✨复....

文章 2017-11-25 来自：开发者社区

《JavaScript高级程序设计》阅读笔记（五）：ECMAScript中的运算符（一）

2.9 运算符 2.9.1、一元运算符　　一元运算符只有一个参数，即要操作的对象或值。　　1、delete：删除对以前定义的对象属性或方法的引用，但此运算符不能删除开发者未定义的属性和方法。示例： 1 var o=new Object; 2 o.name="Nicholas"; 3 o.show=function(){ 4 return "test"; 5 }; 6 console...

文章 2017-11-25 来自：开发者社区

《JavaScript高级程序设计》阅读笔记（六）：ECMAScript中的运算符（二）

2.9.5、加性运算符　　加性运算符（即加号和减号）通常是最简单的运算符，不过在ECMAScript中，每个加性运算符都有大量的特殊行为。　　1、加法运算符： 1 var iResult=1+2;2 console.log(iResult);//outputs 3 　　特殊性：某个运算数是NaN，结果为NaN Infinity加Infinity，结果为Infinity -Infinity.....

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