RN-832: Raw data exports treat numbers as text

[chris-pollard]

Issue RN-832:

Changes:

• Add 'number' check in the useTableExport hook function.

[biaoli0]

isNaN() has a surprising behaviour. The logic provided here will convert empty string '', false, null..etc to 0 because isNaN use Number() to validate the type and Number(false) = 0, so isNaN(false) = false..

Here I suggest we can do something like:

function convertToNumber(str) {
  // Try to parse the string as a floating-point number
  const num = parseFloat(str);

  // Check if the parsed value is a number (not NaN)
  if (!isNaN(num)) {
    return num;
  }

  // If the parsed value is NaN, return the original string
  return str;
}

[chris-pollard]

Good point, @biaoli0 , thanks for the suggestion