Split string matching a pattern JavaScript-CodePudding

I have a string like this:

"First player vs. Second player &emsp;&emsp;&emsp; Percentage%"

First player and Second player can be multiple words and before the Percentage% I'm using three &emsp;. How can I split this string to have an array containing First player and Second player (Percentage is not necessary)?

CodePudding user response：

Something like this should do it

const test1 = 'First player vs. Second player     Percentage&emsp'
const test2 = 'Ryu vs. Ken     100&emsp'

const extractPlayers= (string) => {
  const [firstPlayer, rest] = string.split(' vs. ')
  const secondPlayer = rest.split(' ').filter(x => x).slice(0, -1).join(' ').trim()
  
  return {firstPlayer, secondPlayer}
}

console.log(extractPlayers(test1))
console.log(extractPlayers(test2))

CodePudding user response：

This should do what you want:

const data=["First player vs. Second player &emsp;&emsp;&emsp; Percentage%",
            "Another first player vs. a second one  &emsp;&emsp;&emsp; Percentage%",
            "One     vs. Two&emsp;&emsp;&emsp;   Two Percentage%"];
            
const res = data.map(s=>s.match(/(. ?)\s vs\.\s (. ?)\s*\&emsp;\&emsp;\&emsp;/).slice(1));
console.log(res)

In the regexp I am looking for two matching groups (. ?). These are non-greedy matches, as they are followed or preceded by \s (one or more white space characters) and I don't want these whitespace characters in my matching groups.