Table of Contents
How do you slice an array in Kotlin?
Kotlin array basic operations The set() method sets the array element at the specified index to the specified value. We add a new element to the array, creating a new array. (Remember that arrays are fixed sized; therefore, a new array was created). With the sliceArray() method, we create a slice from the array.
How do you slice an array of arrays?
Use the array methods slice and splice to copy each element of the first array into the second array, in order. Begin inserting elements at index n of the second array. Return the resulting array. The input arrays should remain the same after the function runs.
How do you remove an element from an array in Kotlin?
Remove an element at given position from an array in Kotlin
- fun remove(arr: IntArray, index: Int): IntArray {
- if (index < 0 || index >= arr. size) {
- return arr.
- }
- val result = arr. toMutableList()
- result. removeAt(index)
- return result. toIntArray()
- }
How do you traverse an array in Kotlin?
- Traverse an array without using index property: fun main(args: Array) { var numbers = arrayOf( 1 , 2 , 3 , 4 , 5 , 6 , 7 , 8 , 9 , 10 )
- Traverse an array with using index property: fun main(args: Array) {
- Traverse an array using withIndex() Library Function: fun main(args: Array) {
How do you split a list in Kotlin?
Split a list in Kotlin
- Using subList() function. The idea is to use the subList() function that returns a view of the list between the specified indexes.
- Using chunked() function.
- Using windowed() function.
How do you slice a string in Kotlin?
Kotlin String class provides one method called slice to get one sub-string containing the characters defined by the method argument. It has two variants.
How do I cut a 2d NumPy array?
Use numpy. ix_() to slice a NumPy array numpy. ix_() provides a syntactically straightforward method to slice an array , but isn’t necessary. Use the syntax array[rows, columns] with rows as a list of one element lists that each contain a row index and columns as a list of column indices to slice array .
What is indexing and slicing in NumPy give an example?
Indexing can be done in numpy by using an array as an index. In case of slice, a view or shallow copy of the array is returned but in index array a copy of the original array is returned. Numpy arrays can be indexed with other arrays or any other sequence with the exception of tuples.
How do I remove data from Kotlin list?
Remove last element of a list in Kotlin
- Using removeLast() function. The simplest solution to remove the last element from a list in Kotlin is to use the removeLast() function.
- Using removeAt() function.
- Using remove() function.
How do I remove items from my list in Kotlin?
removeAt(0) removes the first element from the first list and returns it. arrayListOf then uses that removed item to create a new (the second) list.
How do I create an array of arrays in Kotlin?
- Nested arrayOf calls. You can nest calls of arrayOf , e.g., to create an Array of IntArray , do the following: val first: Array = arrayOf( intArrayOf(2, 4, 6), intArrayOf(1, 3, 5) )
- Use Array::constructor(size: Int, init: (Int) -> T) for repeated logic.
How do I write an array in Kotlin?
Creating an array – There are two ways to define an array in Kotlin. We can use the library function arrayOf() to create an array by passing the values of the elements to the function. Since Array is a class in Kotlin, we can also use the Array constructor to create an array.