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 @natashachiu/lotide

Require it:

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

Call it:

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

Documentation

The following functions are currently implemented:

• head(): given an array, returns the first element.
• middle(): given an array, returns the middle element.
• tail(): given an array, returns all elements expect the first element.
• assertEqual(): given an expected value and actual value, logs to the console a message indicating if the two values are equal or not.
• eqArrays(): given two arrays, returns true if they are equal and false otherwise.
• assertArraysEqual(): given an expected array and actual array, logs to the console a message indicating if the two arrays are equal or not.
• eqObjects(): given two objects, returns true if they are equal and false otherwise.
• assertObjectsEqual(): given an expected object and actual object, logs to the console a message indicating if the two objects are equal or not.
• countLetters(): given a string, returns an object containing counts of each letter in the string.
• countOnly(): given an array and an object indicating which elements should be counted, returns an object containing counts of everything that the input object listed.
• letterPositions(): given a string, returns an object with the indices of which each letter in the string appears.
• findKey(): given an object and a callback function, returns the first key of an object that satisfies the condition specified in the callback function.
• findKeyByValue(): given an object and a value of the object, returns the object's key that matches the value.
• takeUntil(): given an array and a callback function, returns an array that holds the same values up until the condition specified in the callback function.
• without(): give two arrays, returns a subset of a given array, removing unwanted elements.
• flatten(): given an array containing elements including nested arrays of elements, returns an array that has all nested arrays "flattened".
• map(): given an array and a callback function, returns an array that applies the changes made to each element via the callback function.