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 @jehmatthews/lotide

Require it:

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

Call it:

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

Documentation

The following functions are currently implemented:

• assertArraysEqual(array1, array2): compares 2 arrays and checks if they are equal or not.
• assertEqual(actual, expected: compares 2 primitives and checks if the actual equals the expected
• assertObjectsEqual(object1, object2): compares 2 objects and determines whether they are equal or unequal
• countLetters(word): looks at a string and counts how many times each letter appears
• countOnly(allItems, itemsToCount): this counts all the items from itemsToCount that are in allItems
• eqArrays(array1, array2): checks to see whether 2 arrays are equal or unequal
• eqObjects(object1, object2): checks to see whether 2 objects are equal or unequal
• findKey(object, callback): looks at the object being called in the callback and returns the first value that passes as true
• findKeyByValue(object, value): looks at an object for given value and returns first instance of true
• flatten(array): flattens or concatenates all arrays inside an array
• head(array): returns first element of an array
• letterPositions(sentence): will return an array of index numbers based on the letter being searched for in given array
• map(array, callback): loops through items of an array and returns a new array of letters based on index given in callback
• middle(array): loops through array and returns middle elements of given array, and will vary based on whether their lengths are even or odd
• tail(array): returns elements of a given array based on where it is sliced
• takeUntil(array, callback): loops through an array and returns every element and breaks at the element expressed in the callback function
• without(source, itemsToRemove): this function removes an item (called) from an array and returns it as a new array (source)