WebOct 10, 2024 · 2. Using indexOf and lastIndexOf. The first thing we need to take into account is that a list allows duplicated elements. Secondly, the methods available in the List class only return the index of one … WebThe list.contains () function in Scala is used to check if a list contains the specific element sent as a parameter. list.contains () returns true if the list contains that element. Otherwise, it returns false. Figure 1, below, shows a visual representation of the list.contains () …
Iterators Collections (Scala 2.8 - 2.12) Scala Documentation
WebMar 30, 2024 · Method #1: Using list comprehension + lower () This problem can be solved using the combination of the above two functions, list comprehension performs the task of extending the logic to whole list and lower function checks for case insensitivity with the target word of argument letter. Python3 test_list = ['Akash', 'Nikhil', 'Manjeet', 'akshat'] WebCheck if list contains a value, in Scala Programming-Idioms 🔍 Search This language bar is your friend. Select your favorite languages! Scala Idiom #12 Check if list contains a … crankcase vent to exhaust
Finding the Index of an Element in a List with Scala
WebJan 4, 2024 · We can use the logic below to compare the equality of two lists using the assertTrue and assertFalse methods. Here we check the size of both lists and check if the first list contains all elements of the second list and vice versa. Although this solution works, it's not very readable. So now let's look at some alternatives: WebSave the above program in Demo.scala. The following commands are used to compile and execute this program. Command \>scalac Demo.scala \>scala Demo Output Head of fruit : apples Tail of fruit : List (oranges, pears) Check if fruit is empty : false Check if nums is empty : true Concatenating Lists WebJul 29, 2024 · The indexOf () method is utilized to check the index of the element from the stated list present in the method as argument. Method Definition: def indexOf (elem: A, from: Int): Int Return Type: It returns the index of the element present in the argument. Example #1: object GfG { def main (args:Array [String]) { val m1 = List (3, 6, 2, 9, 21) crankcase ventilation hose flexible