@bushra.patel/lotide

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 @bushra.patel/lotide

Require it:

const _ = require('@bushra.patel/lotide');

Call it:

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

Documentation

The following functions are currently implemented:

• head(arr): Returns the first item in the array.
• tail(arr)): Returns the "tail" of an array: everything except for the first item (head) of the provided array.
• middle(arr): Returns the middle-most element(s) of the given array.
• flatten(arr): Returns a "flattened" version of the array (including nested arrays).
• without(source, itemsToRemove): Returns a subset of a given array, removing unwanted elements.
• takeUntil(array, callback): Keeps collecting items from a provided array until the callback provided returns a truthy value.
• map(array, callback): Returns a new array based on the results of the callback function.
• countOnly(allItems, itemsToCount): Returns an object containing counts of everything that the input object listed.
• countLetters(sentence): Returns a count of each of the letters in that sentence.
• letterPositions(sentence): Returns all the indices (zero-based positions) in the string where each character is found.
• findKeyByValue(objectToScan, value): Returns the first key which contains the given value. If no key with that given value is found, then it should return undefined.
• findKey(objectToScan, callback): Returns the first key for which the callback returns a truthy value. If no key is found, then it should return undefined.
• assertEqual(actual, expected): Compares the two values it takes in and print out a message telling us if they match or not.
• eqArrays(array1, array2): Returns true or false, based on a perfect match.
• assertArraysEqual(array1, array2): Prints (console.log) an appropriate message to the console.
• eqObjects(object1, object2): Returns true or false, based on a perfect match.
• assertObjectsEqual(actual, expected): Prints (console.log) an appropriate message to the console.