Markdown 常用软件 Typora 官方网站：https://typora.io/[https://typora.io/] MarkTex...

Concat():

Push(): Pop(): Unshift(): Shift(): Sort(): Concat(): Join(): Reverse(): ...

Trim():

大小写转换：

Split():

Slice(): Substr(): Substring():

charAt( ): charCodeAt(): fromCharCode(): indexOf(): lastIndexOf():