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 @shawnxm/lotide

Require it:

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

Call it:

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

Documentation

The following functions are currently implemented:

• head: get the first element of an array.
• tail: get the elements except the first one.
• middle: get the middle elements of an array.
• assertArrayEqual: check whether two arrays are equal.
• assertEqual: check whether two primitive data are equal.
• assertObjectsEqual: take in two objects and console.log an appropriate message to the console.
• countLetters: take in a sentence (as a string) and then return a count of each of the letters in that sentence.
• countOnly: return an object, which properly report all the strings found in the input array, and their respective counts.
• eqArrays: take in two arrays and check whether they are equal.
• eqObjects: take in two objects and returns true or false, based on a perfect match.
• findKey: 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.
• findKeyByValue: 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.
• letterPositions: return all the indices (zero-based positions) in the string where each character is found.
• map: take in an array and a callback functioin, return a new array based on the results of the callback function.
• takeUntil: return a slice of the array with elements taken from the beginning. It should keep going until the callback/predicate returns a truthy value.
• without: will return a subset of a given array, removing unwanted elements.