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@amurrai/lotide

v1.0.0

Published

Training project for Lighthouse Labs

Downloads

4

Readme

Lotide

A mini clone of the Lodash library.

Purpose

BEWARE: This library was published for learning purposes. It is not intended for use in production-grade software.

This project was created and published by me as part of my learnings at Lighthouse Labs.

Usage

Install it:

npm install @amurrai/lotide

Require it:

const _ = require('@amurrai/lotide');

Call it:

const results = _.tail([1, 2, 3]) // => [2, 3]

Documentation

The following functions are currently implemented:

function1(...): description

  • head(arr): returns the first element of an array
  • tail(arr): returns all elements of an array except from the first
  • middle(arr): returns the middle index item of an array with an odd number of elements and the middle 2 items of an array with even number of items
  • flatten(arr): takes a 2 level array and returns a single level array with the same items
  • map(arr, callback): returns an array of the results of the callback over each item in arr
  • takeUntil(arr, callback): returns an array of the callback over each item of arr
  • without(arr, itemsToRemove): returns an array without the items listed to be removed
  • findKey(obj, callback): returns the key of callback in obj
  • findKeyByValue(object, value): returns the key of value in obj
  • countLetters(str): returns an object with keys for each letter in the string and the value of their respective counts
  • countOnly(arr1, arr2): returns an object with the items from arr2 as keys and the values equal to the counts of each item in arr1
  • assertArraysEqual(arr1, arr2): console.log the return of eqArrays
  • assertEqual(actual, expected): console.log assertion of comparison between actual and expected
  • assertObjectsEqual(actual, expected): deep comparison between objects actual and expected
  • eqArrays(arr1, arr2): shallow comparison between arrays arr1 and arr2
  • eqObjects:
  • letterPositions(str): takes a string and returns an object with a key for each letter and the value of all indexes of the letter occurence