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How to sort a Scala Map by value

Last updated: 01 October 2021

In this article, we will learn how to sort a Scala Map by value. We can sort the map by key, from low to high or high to low, using sortBy method.Syntax:MapName.toSeq.sort ...read more

How to get all the keys from a Scala map

Last updated: 29 July 2019

In order to get all the keys from a Scala map, we need to use either keySet method (to get all the keys as a set) or we can use keys method and if you want to get the keys ...read more

Scala Map toSeq() method with example

Last updated: 29 July 2019

The toSeq() method is utilized to display a sequence from the Scala map.Method Definition: def toSeq: Seq[A]Return Type: It returns a sequence from the stated map.Example ...read more

Similar Topics

18.9k+ articles

1.6k+ articles

1.2k+ articles

1.2k+ articles

scala-collection

350+ articles

How to get all the values from a Scala map

Last updated: 29 July 2019

In order to get all the values from a Scala map, we need to use values method (to get all the values as an Iterable) and if we want to get the values as an iterator, we ne ...read more

Scala Map toList() method with example

Last updated: 26 July 2019

The toList() method is utilized to display the elements of the map in the list.Method Definition: def toList: List[A]Return Type: It returns all the elements of the map in ...read more

Scala Map transform() method with example

Last updated: 13 August 2019

The transform() method is utilized to transform the elements of the map into a mutable map.Method Definition: def transform(f: (K, V) = V): Map.this.typeReturn Type: It tr ...read more

Scala Map size() method with example

Last updated: 13 August 2019

The size() is utilized to find the number of key-value pairs in the stated map.Method Definition: def size: IntReturn Type: It returns the number of elements in the map.Ex ...read more

Scala Map isEmpty() method with example

Last updated: 13 August 2019

The isEmpty() method is utilized to check if the given map is empty or not.Method Definition: def isEmpty: BooleanReturn Type: It returns true if the stated map is empty e ...read more

Scala Map foreach() method with example

Last updated: 13 August 2019

The foreach() method is utilized to apply the given function to all the elements of the map.Method Definition: def foreach(f: ((A, B)) = Unit): UnitReturn Type: It returns ...read more

Scala Map filter() method with example

Last updated: 13 August 2019

The filter() method is utilized to select all elements of the map which satisfies a stated predicate.Method Definition: def filter(p: ((A, B))= Boolean): Map[A, B]Return T ...read more

Scala Map get() method with example

Last updated: 13 August 2019

The get() method is utilized to give the value associated with the keys of the map. The values are returned here as an Option i.e, either in form of Some or None.Method De ...read more

Remove key value from Map in Scala

Last updated: 13 August 2019

The deletion of Scala map keys can be obtained by utilizing - operator. This operator is utilized to delete the set of keys of the map.Syntax:def -(elem1: A, elem2: A, ele ...read more

Concatenate Two Maps in Scala

Last updated: 13 August 2019

The concatenation of Scala map is obtained by utilizing ++ operator.Syntax :def ++(xs: Map[(A, B)]): Map[A, B]Return Type:It returns a single map by concatenating two maps ...read more

Scala map contains() method with example

Last updated: 28 May 2019

The contains() method of Scala is equivalent to the isDefinedAt method of Scala but the only difference is that isDefinedAt is observed on all the PartialFunction classes ...read more

Monads in Scala

Last updated: 24 August 2020

In Scala, Monads is a construction which performs successive calculations. It is an object which covers the other object. It is worth noting that here, the output of an op ...read more

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