Splitting a string into an array based on a regular expression

Question

Splitting a string into an array based on a regular expression

I'm working with a structure that consists of either a single string array ['stufff sjktasjtjser ((matchthis))'], or the same structure in a nested array ['stufff', ['more stuff ((matchhere))'], '((andanother))']. I have the ability to loop through and match all regex patterns within the brackets, as well as replace the text:

// After flattening the array, let's focus on the first element and assume I am looping within it.
var matches = currentArrayElement.matchAll('fancyregex') // pretending to match the brackets
matches.forEach(match=>currentArrayElement=currentArrayElement.replaceAll(match[0],'whatwhat'))
console.log(currentArrayElement) //'stufff sjktasjtjser whatwhat'
// However, my desired output is actually:
// currentArrayElement = ['stufff sjktasjtjser','whatwhat'];

Can anyone provide guidance on how I can achieve this? Or suggest any template library that can handle this requirement for nested arrays? Sometimes I need to output an array of strings ['tss'], and other times an array with objects [{}].

Thank you.

javascript arrays regex

Answer 1

Answer №1

The problem arose when I realized that only the array at a specific index needed to be modified, not the entire array.

Here is the solution I implemented:

// After flattening the array, we focus on the first element as if we are iterating through it.
var matches = currentArrayElement.matchAll('fancyregex') // Assuming brackets are being matched
matches.forEach((match) => {
      currentArrayElement[i] = c.split(match[0]).flatMap(
        (value, index, array) => (array.length - 1 !== index
          ? [value, 'whatwhat',]
          : value),
      );
    });

Answer 2

The problem arose when I realized that only the array at a specific index needed to be modified, not the entire array.

Here is the solution I implemented:

// After flattening the array, we focus on the first element as if we are iterating through it.
var matches = currentArrayElement.matchAll('fancyregex') // Assuming brackets are being matched
matches.forEach((match) => {
      currentArrayElement[i] = c.split(match[0]).flatMap(
        (value, index, array) => (array.length - 1 !== index
          ? [value, 'whatwhat',]
          : value),
      );
    });

Splitting a string into an array based on a regular expression

Answer №1

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