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 @primetee/lotide

Require it:

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

Call it:

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

Documentation

The following functions are currently implemented:

• head(arr, expectedResult): Head function returns the first element in the array.
• tail(arr, expectedResult): Tail function returns a new array with the elements of an array less the first element.
• middle(arr, expectedResult): Middle function returns the middle element if array length is odd or an array of the two middle elements when array length is even.
• assertArraysEqual(array1, array2): Compares two arrays and console logs if they are equal or not. *assertEqual(actual, expected): Compares two variables and logs an assertion (failed or passed). *assertObjectsEqual(actual, expected): compares two objectsa and asserts whether they are same or not. *countLetters(str): counts the number of same letters in a string and return an object with numbers as values and letters as properties. *countOnly(allItems, ItemsToCount): Return counts for a specific subset of those items. *eqArrays(array1, array2): Function takes in two arrays and returns true or false, based on a perfect match. *eqObjects(Obj1, Obj2): Function takes in two objects and returns true or false, based on a perfect match. *findKey(OBJ, Callback): Function scans the object and return the first key for which the callback returns a truthy value. If no key is found, then it should return undefined. *findKeyByValue(Obj, value): Function takes in an object and a value. It should scan the object and return the first key which contains the given value. If no key with that given value is found, then it should return undefined. *flatten(array): Function takes in an array containing elements including nested arrays of elements, and return a "flattened" version of the array *without(source, itemToRemove): Function will return a subset of a given array, removing unwanted elements. *letterPosition(sentence): Function will return all the indices (zero-based positions) in the string where each character is found. *map(array, callback): Function will return a new array based on the results of the callback function. *takeUntil(array, callback): Function will return a "slice of the array with elements taken from the beginning