Create float from unkown currency amount in unkown format

amountToFloat.js

/*
This function will take (almost) any string representing a monetary amount and parse it correctly as a float.
Thousand seperator can be '.' or ','
Decimal point can be '.' or ','
Currency symbols etc. will be removed
The following strings will all parse to (float) 1250.99:
  1250.99
  1,250.99
  1.250,99
  €1.250,99
  $1.250,99
  Ush 1,250.99/=
  Etc.
  
 The following strings will all parse to (float/int) 10500:
  10500.00
  10,500
  10.500
  10500
  Etc.

@param mixed amount Amount to parse
@return float
*/

function amountToFloat(amount){
	// Return amount if already a number float
	if(typeof(amount) == 'number') return amount;

	// Remove all characters except numbers, '.' and ','
	let amountStr = amount.toString()
	const cleanStr = amountStr.replace(/[^0-9.,]/g, '')

	// Search for decimal point in cleanStr
	const decimalPoint = cleanStr.charAt( cleanStr.length - 3)

	// Extract only integers from cleanStr
	const amountInt = parseInt( cleanStr.replace(/[^0-9]/g, '') )

	// Create float from amountInt
	let amountFloat

		// Decimal Point found
		if(decimalPoint == ',' || decimalPoint == '.'){
			// Divide by 100 cents to make float
			amountFloat = parseFloat( amountInt / 100)
		}
		// Decimal point not found
		else{
			// Create float from amountInt
			amountFloat = parseFloat(amountInt)
		}

	return amountFloat
}