getNumericOnly method

String getNumericOnly(
  1. String string, {
  2. bool aFirstWordOnly = false,
})

Returns only numbers from a string trim Whitespaces

Implementation

String getNumericOnly(String string, {bool aFirstWordOnly = false}) {
  String numericOnlyString = '';

  for (var i = 0; i < string.length; i++) {
    if ((string[i].isDigit())) {
      numericOnlyString += string[i];
    }
    if (aFirstWordOnly && numericOnlyString.isNotEmpty && string[i] == " ") {
      break;
    }
  }

  return numericOnlyString;
}