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What is the remove() function in D?

NDUKWE CHIDERA K.

Grokking Modern System Design Interview for Engineers & Managers

Ace your System Design Interview and take your career to the next level. Learn to handle the design of applications like Netflix, Quora, Facebook, Uber, and many more in a 45-min interview. Learn the RESHADED framework for architecting web-scale applications by determining requirements, constraints, and assumptions before diving into a step-by-step design process.

Overview

The remove() function in the D language takes off an element from an array range. It returns a copy of the array with the taken-off value missing.

This operation does not cause a permanent change in the array range value. Rather, the new copy can be saved as another array variable.

Syntax

remove(rangeValue,offset)

Parameters

  • rangeValue: This is the range value that will have an element from it removed.
  • offset: This is an integer value that is the offset of the value to be removed from rangeValue.

Return value

The range value return is a copy of the initially supplied one, without the removed value.

Code

import std.algorithm.mutation;
import std.stdio;
import std.algorithm.sorting;

void main(){

//Declare a variable.
string[] holder = [ "calm", "palm", "sam", "dam" ];

//Remove an element from the declared array variable.
string[] output = remove(holder,2); // Remove the element at offset 2.

//Display the result using the remove() method.
writeln(output);

//Display the result holder variable.
writeln(holder);

//Declare the integer array
int[] range = [ 20, 3, 40, 5, 60];

//Remove the specified element from the range value.
int[] split = remove(range,3); // Remove the element at offset 1.
writeln(split);
}
Implementing the remove() function

Explanation

  • Lines 1–3: We import the necessary modules.

  • Line 5: We start the main function and end it on line 25.

  • Line 8: We declare a variable, holder, which is an integer range.

  • Line 11: We remove an element from the declared array variable.

  • Line 14: We display the result by using the remove() method.

  • Line 17: We display the result holder variable. It returns unchanged.

  • Line 20: We declare the integer range array.

  • Line 23: We remove the specified element from the range array value using the remove() function.

  • Line 24: We print the output to the console.

RELATED TAGS

d language
d

Grokking Modern System Design Interview for Engineers & Managers

Ace your System Design Interview and take your career to the next level. Learn to handle the design of applications like Netflix, Quora, Facebook, Uber, and many more in a 45-min interview. Learn the RESHADED framework for architecting web-scale applications by determining requirements, constraints, and assumptions before diving into a step-by-step design process.

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