使用REGEX从字符串中提取信息？

Question

I have:

var str = 'WEB-3545 Detta är ett REGEX test WEB-3545';

I want:

['WEB', '3545'];

Tried something like:

str.match(/^(WEB-|DR-)\d+\s/)

The pattern I'm matching against is: String should start with: WEB- OR DR- Then follow with 1 or more numbers End with a space

Ex;

So, in the example above only the highlighted part should match: ' WEB-3545 Detta är ett REGEX test WEB-3545'

I can only run regex operations, not creating a loop or anything - because this is used in a Maven POM-file.

Both Java and JavaScript solutions are fine.

Thanks!

/J

Answer 1

You can use regex ^\\s*(WEB|DR)-(\\d+)\\b and use splice() to remove the string match, since only need is capturing group

 var str = 'WEB-3545 Detta är ett REGEX test WEB-3545'; var res = str.match(/^\\s*(WEB|DR)-(\\d+)\\b/).splice(1); document.write(JSON.stringify(res)); 

Answer 2

The regex should be /^(WEB|DR)-(\\d+)\\b/ , \\b matches the word edge, no need to use \\s :)

var reg = /^(WEB|DR)-(\d+)\b/;
var str = 'WEB-3545 Detta är ett REGEX test WEB-3545';
console.log(str.match(reg).slice(1));//remove input match