Javascript 使用java脚本或正则表达式从值中拆分数字和字符串

我有一个值“4.66磅”

我想用正则表达式把“4.66”和“lb”分开

我尝试了下面的代码，但它只分隔了数字“4,66”！！但是我想要4.66和lb的值

var text = "4.66lb";
var regex = /(\d+)/g;
alert(text.match(/(\d+)/g));

尝试一下：

var res = text.match(/(\d+(?:\.\d+)?)(\D+)/);

res[1]

包含

4.66

res[2]

包含

lb

为了同时匹配

4/5lb

，您可以使用：

var res = text.match(/(\d+(?:[.\/]\d+)?)(\D+)/);

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你也可以使用角色类

> var res = text.match(/([0-9\.]+)(\w+)/);
undefined
> res[1]
'4.66'
> res[2]
'lb'

让我举例说明

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您是否尝试过添加

（[a-z]+）

？简短而甜美，+1.）嘿，我还有一个场景，数字可以是4/5磅，所以在这种情况下，我需要拆分4/5磅和1磅……那么这个正则表达式是什么呢？@user3770003：用斜杠替换点：

/（\d+（？：\/\d+）（\d+）/

var str = ' 1 ab 2 bc 4 dd';   //sample string

str.split(/\s+\d+\s+/)
result_1 = ["", "ab", "bc", "dd"]  //regex not enclosed in parenthesis () will split string on the basis of match expression

str.split(/(\s+\d+\s+)/)        //regex enclosed in parenthesis () along with above results, it also finds all matching strings
result_2 = ["", " 1 ", "ab", " 2 ", "bc", " 4 ", "dd"] 

//here we received two type of results: result_1 (split of string based on regex) and those matching the regex itself

//Yours case is the second one
//enclose the desired regex in parenthesis
solution : str.split(/(\d+\.*\d+[^\D])/)