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 @olanrewaju-ak/lotide

Require it:

const _ = require('@olanrewaju-ak/lotide');

Call it:

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

Documentation

The following functions are currently implemented:

• head(array): function head returns the end of any array passed into it.
• tail(array): function tail returns the tail of any array passed into it.
• middle(array): function middle returns an array of themiddle item(s),of any array passed into it.
• assertEqual(actual,expected): the function compare the two values it takes in and print out a message telling us if they match or not.
• eqArrays(array1,array2): function eqArrays takes in two arrays and returns true or false, based on a perfect match.
• assertArraysEqual(array1,array2): function for asserting that two arrays are equal.
• without(array,[values to remove]): function without will return a subset of a given array, removing unwanted elements
• flatten(array): is a function which does something like this. Given an array with other arrays inside, it can flatten it into a single-level array.This function can only handle one level of nesting.
• countOnly(array, itemsToCount): will be given an array and an object. It will return an object containing counts of everything that the input object listed.
• countLetters(string): The function should take in a sentence (as a string) and then return a count of each of the letters in that sentence.
• letterPositions(string): will return all the indices (zero-based positions) in the string where each character is found.
• findKeyByValue(object,value): which 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.
• eqObjects(object1,object2): takes in two objects and returns true or false, based on a perfect match.
• assertObjectsEqual(actual,expected): which will take in two objects and console.log an appropriate message to the console.
• map(array,callback):The map function will return a new array based on the results of the callback function.
• takeUntil(array,callback):The function will keep collecting items from a provided array until the callback provided returns a truthy value.
• findkey(array,callback): Takes in an object and a callback. It should scan 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.