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 @jada24/lotide

Require it:

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

Call it:

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

Documentation

The following functions are currently implemented:

• assertArraysEqual(actual, expected):takes in two arrays and console.log an appropriate message to the console.

• assertEqual(actual, expected):compares the two values it takes in, and prints out a message telling us if they match or not.

• assertObjectsEqual(actual, expected): takes in two objects and console.log an appropriate message to the console.

• countLetters(str): takes in a sentence (as a string) and then return a count of each of the letters in that sentence.

• countOnly(allItems, itemsToCount): This function will be given an array and an object. It will return an object containing counts of everything that the input object listed.

• eqArrays(arr1, arr2): takes in two arrays and returns true or false, based on a perfect match.

• eqObjects(obj1, obj2): take in two objects and returns true or false, based on a perfect match.

• findKey(object, callback): takes in an object and a callback, It scans the object and return the first key for which the callback returns a truthy value.

• findKeyByValue(key, value): This function takes in an object and a value. It should scan the object and return the first key which contains the given value.

• head(arr): returns the first item in the array.

• letterPositions(sentence): This function will return all the indices (zero-based positions) in the string where each character is found.

• map(array, callback): takes in an array and a callback function, and returns a new array based on the results of the callback function.

• middle(arr): This function will take in an array and return the middle-most element(s) of the given array.

• tail(arr): returns the "tail" of an array: everything except for the first item (head) of the provided array.

• takeUntil(array, callback): This function will keep collecting items from a provided array until the callback provided returns a truthy value.

• without(source, itemsToRemove): This function will return a subset of a given array, removing unwanted elements.