Dart .containsValue()

In Dart, the .containsValue() method is used to check if a particular value is present in a Map. If the value exists, the method returns true. Otherwise, it returns false.

Syntax

newMap.containsValue(val)

• newMap: The Map to be checked.
• val: The value to be searched for.

Example

The following example demonstrates the usage of the .containsValue() method:

void main() {
  // Creating a Map
  Map newMap = {1: 'Cricket', 2: 'Football', 3: 'Tennis'};

  // Checking if 'Tennis' exists in the Map
  print(newMap.containsValue('Tennis'));
}

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The above code produces the following output:

true

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