Compare a string array with another string array and create a new array

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I need a method/algorithm to find in array1 strings of array2 and create a new array (array3) with all Stings separated from array2.

For example

array1 = ['azxsdfghjkazxfgtfgt'];

To array2 would look that way:

array2 = ['azx', 'sdf', 'ghjk', 'fgt'];

Already the array3 would look that way:

array3 = ['azx','sdf','ghjk', 'azx', 'fgt', 'fgt'];

javascript array string

  • I don’t get it... you want to find array1 array2 strings and add them to array2, that’s it?

  • want to find array1 array2 strings and create a new array with all Stings separated from array2

  • And when a piece is found it can be used for future match? or is removed from the algorithm?

  • when the piece is found, it has q be used for match, without removing anything from the algorithm

  • My question is if letters from this previous match can be used if they match with others?

  • this, it can be used with other

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1 answer

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You can go through this string and cut the beginning by checking if this substring starts with any of the pieces that array2 has.

Example:

const array1 = ['azxsdfghjkazxfgtfgt'];
const array2 = ['azx', 'sdf', 'ghjk', 'fgt'];

function extrair(string, arr) {
  var encontradas = [];
  for (var i = 0; i < string.length; i++) {
    arr.forEach(function(match) {
      if (string.slice(i).indexOf(match) == 0) encontradas.push(match);
    });
  }
  return encontradas;
}

var array3 = extrair(array1[0], array2);
console.log(array3); // ['azx','sdf','ghjk', 'azx', 'fgt', 'fgt'];

  • 1

    The guy was the result that I wanted, thank you very much, in this function has method that I will still study, but only by this code it will serve as a basis for testing both for these methods that this part of the function as for others, thank you very much!

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