September 2022
Intermediate to advanced
585 pages
8h 17m
Chinese
Content preview from JavaScript 经典实例：第三版
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47
第
2
章
字符串和正则表达式
以后举办
JavaScript
聚会时，你可以问大家一个问题，看看与会者对细节的掌握程度：
在
JavaScript
这门世界上最流行的语言中，有多少种数据类型？
答案是
8
种，这可能有点让你意外。
JavaScript
的
8
种数据类型如下所示。
• Number
。
• String
。
• Boolean
。
• BigInt
（特别大的整数）。
• Symbol
（独一无二的标识符）。
• Object
（其他每个
JavaScript
类型的根基）。
• undefined
（没有赋值的变量）。
• null
（缺失的对象）。
这些数据类型在本书中都有涉及。本章着重讲解对字符串所做的文本处理。
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.