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 @username/lotide

Require it:

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

Call it:

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

Documentation

The following functions are currently implemented:

• function1(head): Head is a function which returns the first item in the array.

• function2(middle): middle function will take in an array and return the middle-most element(s) of the given array.

• function3(tail): tail function returns the "tail" of an array: everything except for the first item(head) of the povided array.

• function4(assertEqual): assertEqual is a function that compares two values it takes in and prind out a message telling you if they match or not.

• function5(assertArrayEqual): assertArraysEqual function will take in two arrays and console.log an appropriate message to the console.

• function6(assertObjectEqual): assertObjectsEqual function will take in two objects and console.log an appropriate message to the console.

• function7(countLetters): countLetters function should take in a sentence (as a string) and then return a count of each of the letters in that sentence.

• function8(countOnly): countOnly function will be given an array and an object. It will return an object containing counts of everything that the input object listed.

• function9(eqArrays): eqArrays function takes in two arrays and returns true or false, based on perfect match.

• function10(eqObject): eqObjects function which will take in two objects and returns true or false, based on a perfect match.

• function11(findKey): findKey function 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.

• function12(findKeyByValue): findKeyByValue 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.

• function13(flatten): function flatten will take in an array of arrays and return a "flattened" version of the array.

• function14(index): index is a function which contains an object of all the file on this project to exports.

• function15(letterPosition): letterPositions which will return all the indices in the string where each character is found.

• function16(map): map function will take two arguments, an array to map and a callback function, the map function will return a new array based on the results of the callback function.

• function17(takeUntil): takeUntil function will take two parameters, the array to work with abd the callback. The function will return a "slice of the array with elements taken from the beginning." It should keep going until the callback/predicate returns a truthy value.

• function17(without): without function will return a subset of a given array, removing unwanted elements.