javascript字符串删除空格和连字符

Question

I would like to remove white spaces and hyphens from a given string. 我想从给定的字符串中删除空格和连字符。

 var string = "john-doe alejnadro";
 var new_string = string.replace(/-\s/g,"")

Doesn't work, but this next line works for me: 不起作用，但下一行对我有用：

var new_string = string.replace(/-/g,"").replace(/ /g, "")

How do I do it in one go ? 我该如何一次性完成？

Answer 1

Use alternation : 使用交替：

var new_string = string.replace(/-|\s/g,"");

a|b will match either a or b , so this matches both hyphens and whitespace. a|b将匹配 a或b ，所以这两个连字符和空格相匹配。

Example: 例：

> "hyphen-containing string".replace(/-|\s/g,"")
'hyphencontainingstring'

Answer 2

You have to use: 你必须使用：

 var new_string = string.replace(/[-\s]/g,"")

/-\\s/ means hyphen followed by white space. /-\\s/表示连字符后跟空格。

Answer 3

Use This for Hyphens 用于连字符

var str="185-51-671";
var newStr = str.replace(/-/g, "");

White Space 白色空间

var Actuly = newStr.trim();