Javascript正则表达式选择未连接到字母的数字

Question

This is my current regex:

var re = '/\d+\s+[\d+a-z]+/gi'; 

I'm trying to get my regex to select numbers before if there are there own and then any abc characters and numbers after a whitespace

This is my test string

part1 6

22 part2

part3 8

At the moment its selecting the following

1 : 6

22 part2

3 8

But I just want to be selecting this

22 part2

So i'm only wanting to select this if the number is on its own.

Any help thanks ?

Answer 1

The regex is /^\\d+\\s[a-zA-Z0-9]+$/

• ^ start
• \\d+\\s 1 or more digits and 1 space
• [a-zA-Z0-9]+ the alpha numeric combination
• $ end

 var arr=["part1 6","22 part2","part3 8"]; var re=/^\\d+\\s[a-zA-Z0-9]+$/; arr.forEach(x => console.log(x,re.test(x))); 

Answer 2

你可以试试这个正则表达式

regex : /^\d+\s[a-zA-Z0-9]+\s\d+$;