How to Remove Element from Array based on a Condition in Swift - Step by Step Examples



How to Remove Element from Array based on a Condition in Swift ?

Answer

In Swift, you can use the `filter` method to create a new array excluding elements that match the condition.



✐ Examples

1 Remove Numbers Less Than 5

In this example,

  1. We create an array named `numbers` with elements including those to be removed based on the condition.
  2. We use the `filter` method with a condition to create a new array excluding numbers less than 5.
  3. Finally, we get a new array with numbers greater than or equal to 5.

Swift Program

let numbers = [1, 6, 2, 7, 3, 8, 4, 9, 5]
let filteredNumbers = numbers.filter { $0 >= 5 }
print("Array after filtering:", filteredNumbers)

Output

Array after filtering: [6, 7, 8, 9, 5]

2 Remove Strings Containing 'a'

In this example,

  1. We create an array named `words` with elements including those to be removed based on the condition.
  2. We use the `filter` method with a condition to create a new array excluding strings containing 'a'.
  3. Finally, we get a new array with strings not containing 'a'.

Swift Program

let words = ["apple", "banana", "grape", "orange", "melon"]
let filteredWords = words.filter { !$0.contains("a") }
print("Array after filtering:", filteredWords)

Output

Array after filtering: ["melon"]

Summary

In this tutorial, we learned How to Remove Element from Array based on a Condition in Swift language with well detailed examples.




More Swift Arrays Tutorials

  1. How to Declare an Array in Swift ?
  2. How to Initialize an Array in Swift ?
  3. How to Access Array Elements in Swift ?
  4. How to Access Array Elements using Index in Swift ?
  5. How to get First Element in Array in Swift ?
  6. How to get Last Element in Array in Swift ?
  7. How to check if an Array is Empty in Swift ?
  8. How to check if an Array is Not Empty in Swift ?
  9. How to get Sub Array in Swift ?
  10. How to Get Array Length in Swift ?
  11. How to Iterate Over an Array in Swift ?
  12. How to Iterate Over an Array in Reverse Order in Swift ?
  13. How to get the Index of Specified Element in an Array in Swift ?
  14. How to check if Specified Element is present in the Array in Swift ?
  15. How to count the Number of Occurrences of Specified Element in the Array in Swift ?
  16. How to Sort an Array in Swift ?
  17. How to Sort an Array in Ascending Order in Swift ?
  18. How to Sort an Array in Descending Order in Swift ?
  19. How to create a Two Dimensional Array in Swift ?
  20. How to Iterate over a Two Dimensional Array in Swift ?
  21. How to create a Three Dimensional Array in Swift ?
  22. How to Copy an Array in Swift ?
  23. How to Split an Array in Swift ?
  24. How to Join Arrays in Swift ?
  25. How to check if Two Arrays are Equal in Swift ?
  26. How to check if Two Arrays have Same Elements (Regardless of Order) in Swift ?
  27. How to Convert an Array of Integers to an Array of Strings in Swift ?
  28. How to Convert an Array of Strings to an Array of Integers in Swift ?
  29. How to Reverse an Array in Swift ?
  30. How to Shuffle an Array in Swift ?
  31. How to Rotate Elements in an Array in Swift ?
  32. How to Filter Elements of an Array based on a Condition in Swift ?
  33. How to Declare an Integer Array in Swift ?
  34. How to Declare a Float Array in Swift ?
  35. How to Declare a String Array in Swift ?
  36. How to Remove Duplicates in an Array in Swift ?
  37. How to Remove Specific Element from an Array in Swift ?
  38. How to Remove Element from Array based on a Condition in Swift ?
  39. How to Sort a String Array in Dictionary Order in Swift ?
  40. How to Concatenate Strings in Array in Swift ?