isAllEqualsInMap function
Returns true if map values are all equals to value.
deep IF true checks deeply collections values.
Implementation
bool isAllEqualsInMap(Map? map, Object value, [bool deep = false]) {
if (map == null || map.isEmpty) return false;
for (var e in map.values) {
if (!isEquals(e, value, deep)) {
return false;
}
}
return true;
}