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 @aharman/lotide

Require it:

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

Call it:

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

Documentation

The following functions are currently implemented: head, tail, middle, eqArrays, assertEqual, assertArraysEqual, flatten, countOnly, letterPositions, findKeyByValue, eqObjects, map, countLetters, assertObjectsEqual, findKey, takeUntil, without

• head(array): returns an array containing the first element; if zero elements, then returns empty array
• tail(array): returns array for all elements except head element
• middle(array): returns array of middle elements
• eqArrays(array1, array2): compares two arrays and returns boolean indicating if they are a perfect match
• assertEqual(actual, expected): compares two primitive datatypes and returns true if strictly equal (does not work with arrays)
• assertArraysEqual(actual, expected): compares two arrays and returns true if they are strictly equal to each other based on their elements
• flatten(array): takes an array with elements nested array elements (only support one level of nesting) and flattens it to a 1D array
• countOnly(allItemsArray, itemsToCountObject :takes in a collection of items as strings and an object of which specific subset of items to count
• letterPositions(sentence): takes in a string and returns an object that gives all the idices in the string where each character is found
• findKeyByValue(object, value): returns first key containing the value found in the object
• eqObjects(object1, object2) : compares two object by key-value pairs and returns if they are equal
• map(array, callback): will return a new array based on results of callback function
• countLetters(sentence): takes in a string and returns object of a count of each letter
• findKey(object, callback): returns first key for which the callback yields a truthy value
• takeUntil (array, callback): returns slice of the array based on criteria specified in callback
• without(source, itemsToRemove): takes in a source array and itemsToRemove array and returns items from source not in itemsToRemove
• assertObjectsEqual(object1, object2): writes to console whether two objects are deeply equal or not