package parse

import "strconv"

// NumericOnly extracts only digits and decimal points from a string and
// returns the result as a float64. Returns 0 if parsing fails.
func NumericOnly(in string) float64 {
	var out string
	for _, r := range in {
		if (r >= '0' && r <= '9') || r == '.' {
			out += string(r)
		}
	}

	val, err := strconv.ParseFloat(out, 64)
	if err != nil {
		return 0
	}

	return val
}