Question 314641 in Javascript Question posted in
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Javascript – How to split a string but keep the text just before the delimiter

I have this string:

const inputString = 'Crew: CAP(X): Ches, Ben, FO: Smith, Matthew, FO(T,P): Singh, Sushant';

I want to split this string so that the output is like so:

[
  'Crew',
  'CAP(X): Ches, Ben, ',
  'FO: Smith, Matthew, ',
  'FO(T,P): Singh, Sushant'
]

So split but take the text immediately before.

I tried this:

const result = inputString.split(/(?<=: )/);
console.log(result);
Tags:

2

Answers


  1. 0

    You can split it by space, then loop over it,
    if contains :, push a new item, otherwise just concatenate it.

    Something like below,

    const inputString = 'Crew: CAP(X): Ches, Ben, FO: Smith, Matthew, FO(T,P): Singh, Sushant'

// split by space
const words = inputString.split(/s/)

let output = []
let res = ''

for (const word of words) {
    if (word.includes(':')) {
        // add new item to output if : is found and reset res
        if ( res !== '' ) 
            output.push(res)
        res = word
    } else {
        //concatenate with current res
        res += ' ' + word
    }
}

// push the last res
output.push( res )

console.log( output )
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  2. 0

    This is a tricky one due to "Crew" not being the same as the rest of the string, plus all the additional commas and colons. Here’s my attempt:

    const inputString = 'Crew: CAP(X): Ches, Ben, FO: Smith, Matthew, FO(T,P): Singh, Sushant';

//"Crew' is the outlier, so let's remove it for now and let's split on spaces
let formattedString = inputString.replace("Crew: ","").split(" ");

//We'll start with "Crew"
const finalOutput = ["Crew"];

let idx = 0;
formattedString.forEach(
    fs => {
    //":" indicates title, so we'll make this into a new item in the array by increasing idx and initializing the array item at this index
    if (fs.includes(":")) {
      idx++;
      finalOutput[idx] = "";
    }

        //add the current word at this array index
    finalOutput[idx] += fs;
    
  }
);
//console.log(finalOutput)
//add the spaces back to the colons and strings
finalFinalOutput = finalOutput.map(
    i => i.replaceAll(":",": ").replaceAll(",",", ")
);

console.log(finalFinalOutput)
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