Is it possible to maintain the data types of each individual piece of data when it's divided into an array in

Can the data type of each field be preserved in Javascript after splitting it using the split method?

Input:

var row = "128, 'FirstName, LastName', null, true, false, null, 'CityName'";

When using the split method, the data type of each field is lost and results in an array of strings as shown below.

row.split(',');

["128", " 'FirstName", " LastName'", " null", " true", " false", " null", " 'CityName'"]

Even a comprehensive CSV to Array function like the one I found here also gave the same array of strings output.

Any recommendations for preserving data types while splitting the data?

javascriptcsv

Answer №1

To ensure the correct format, we must perform a direct conversion from string using the function provided below.

  function transformString(value) {
  if (typeof value === 'string') {
    if (value === 'true' || value === 'false') {
      return value === 'true'
    } else if (!isNaN(+value)) {
      return +value
    }
  }
  return value
}

You can find this handy function here: https://github.com/typicode/json-server/blob/master/src/utils.js

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