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Javascript – Split a string into an array of words and punctuation marks

I have a string:

this.sentence = 'I have a brother, sister, a dog, and a cat.'

I want to convert it into an array so that each word and each punctuation mark is a separate value. Using .split(" ") gives me an array of words, but does not put each comma and a dot as a separate value.

How can I do this so that I get such array

["I", "have", "a", "brother", ",", "sister", ",", "a", "dog", ",", "and", "a", "cat", "."]

I don’t really want to use .match and regex as I need to include special Polish characters in my sentences

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2

Answers


  1. 0 
    const string = 'I have a brother, sister, a dog, and a cat.';

// Split the string into an array of words
const result = string.split(' ');
   
// Iterate over the array
for (let i = 0; i < result.length; i++) {
  // Check if the word includes a comma      
  if (result[i].includes(',')) {
    // Remove the comma from the word
    result[i] = result[i].replace(',', '');
    // Insert the comma as a separate element in next position of the aray
    result.splice(i + 1, 0, ',');
    // Skip next iteration since we've added the comma and move onto next word
    i += 1;
  }
  // *Repeat same process as above but for periods
  if (result[i].includes('.')) {
    result[i] = result[i].replace('.', '');
    result.splice(i + 1, 0, '.'); 
    i += 1;
  }
}
console.log(result);
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  2. 0

    Simple way to split them with regex

    const args = this.sentence.trim().split(/b|b(?=W)/)?.filter((e)=>e.trim() !=="");

console.log(args)

    But, not sure if you don’t want use regex.

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