getNum method

num getNum(
  1. String key, [
  2. num? defaultValue
])

returns the value corresponding with key as num if null returns defaultValue

Implementation

num getNum(String key, [num? defaultValue]) {
  var val = optNum(key, defaultValue);
  if (val == null) {
    throw MissingRequiredParameterError(
        'Failed to parse [num] $key value from ${_params[key]}');
  }
  return val;
}