@otbi/lotide v1.0.1

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 @otbi/lotide

Require it:

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

Call it:

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

Documentation

The following functions are currently implemented:

• assertEqual(...): A function that compares two arrays and print out a message telling us if they match or not
• head(...): A function which returns the first item in the array.
• tail(...): A function which returns everything except for the first item of the provided array.
• eqArrays(...): A function which takes in two arrays and returns true or false, based on a perfect match.
• assertArraysEqual(...): A function which will take in two arrays and return an appropriate message to the console.
• without(...): A function which will return a subset of a given array, removing unwanted elements.
• flatten(...): A function which will take in an array containing elements including nested arrays of elements, and return a "flattened" version of the array.
• middle(...): A function which will take in an array and return the middle-most element(s) of the given array - two elements if even and one if odd.
• countOnly(...): This function takes in a collection of items and return counts for a specific subset of those items.
• countLetters(...): A function which will take in a sentence (as a string) and then return a count of each of the letters in that sentence.
• letterPositions(...): A function which will return all the indices (zero-based positions) in the string where each character is found.
• findKey(...): A function which 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.
• eqObjects(...): A function which will take in two objects and returns true or false, based on a perfect match.
• assertObjectsEqual(...): A function which will take in two objects and console.log an appropriate message to the console.
• map(...): A function which will take in two arguments - An array to map & A callback function. The map function will then return a new array based on the results of the callback function.
• findKeyByValue(...): A function 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.
• takeUntil(...): A function which will keep collecting items from a provided array until the callback provided returns a truthy value.