JavaScript编程数据类型的相关内容

阿里云文档 2023-10-30

如何实现H5JS的编程_移动开发平台 mPaaS(mPaaS)

目前，很多移动 App 前端都采用了 JavaScript (JS) 语言进行编码。mPaaS 也提供了移动端 Web 解决方案 —— H5 容器H5 容器简介。H5 承载于 Android 和 iOS 之上，需要进行客户端接入。

文章 2017-12-10 来自：开发者社区

JS编程建议——4：注意JavaScript数据类型的特殊性（2）

建议4：注意JavaScript数据类型的特殊性（2）3.正确检测数据类型使用typeof运算符返回一个用于识别其运算数类型的字符串。对于任何变量来说，使用typeof运算符总是以字符串的形式返回以下6种类型之一："number""string""boolean""object""function""undefined"不幸的是，在使用typeof检测null值时，返回的是“object”，而不....

文章 2017-12-10 来自：开发者社区

JS编程建议——4：注意JavaScript数据类型的特殊性（1）

建议4：注意JavaScript数据类型的特殊性（1）1.防止浮点数溢出二进制的浮点数不能正确地处理十进制的小数，因此0.1+0.2不等于0.3。 num = 0.1+0.2; //0.30000000000000004 这是JavaScript中最经常报告的Bug，并且这是遵循二进制浮点数算术标准（IEEE 754）而导致的结果。这个标准适合很多应用，但它违背了数字基本常识。幸运的是，浮点...

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更新时间 2024-04-08 09:10:26

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