hasValue method

bool hasValue(
  1. T value
)

Checks if the given value exists in the map.

Returns true if any of the values in the map are equal to value.

Example:

map.hasValue("value") // true

Implementation

bool hasValue(T value) => any(
      (T element) {
        if (element is! Map<T, T>) {
          return false;
        }
        return element.containsValue(value);
      },
    );