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@dubisdev/pointer-stack-structure

v1.1.1

Published

A JavaScript implementation of a CLI input data structure

Downloads

7

Readme

@dubisdev/pointer-stack-structure

This package implements something similar to a stack, but with a pointer. This is useful when you want to keep a stack of items, but you also want to navigate through the stack.

Use cases:

  • Keep track of commands in a terminal (like in a shell)
  • A chat history
  • List of visited pages in a browser
  • Anywhere you want to store a list of items and navigate through them sequentially

Principles

  • The data structure is a simple array of items (type can be defined by the user)
  • New items are added at the end of the array.
  • The last added item can be accessed using the peek method.
  • When a new item is added, the pointer is set to that item (the last).
  • Navigation is done using a pointer that points to the current item. Youcan use peek anytime to get the last item without moving the pointer.
  • You can navigate through the history using the getPrevious and getNext methods or
  • Set the pointer to a specific item using the setPointer method.

License

MIT © David Jiménez