@iourivolkov/lotide v1.0.0

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 @iourivolkov/lotide

Require it:

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

Call it:

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

Documentation

The following functions are currently implemented:

• assertArraysEqual: Takes in two arrays and console.logs an appropriate message to the console based on whether they match.
• assertEqual: Compares actual and expected values and prints a message to tell us whether they match.
• assertObjectsEqual: Takes in two objects and console.logs and appropriate message to the console based on whether they match.
• eqArrays: Takes in two arrays and returns true or false, based on a perfect match.
• eqObjects: Compares two objects to tell us whether they match.
• countLetters: Takes in a sentence (as a string) and returns a count of each of the letters in that sentence.
• countOnly: Takes in a collection of items and returns the counts for a specific subset of those items.
• findKey: Takes in an object and a callback, scans the object and returns the first key for which the callback returns a truthy value. If no key is found, it returns undefined.
• findKeyByValue: Takes in an object and a value. Scans the object and returns the first key which contains the given value. If no key with that given value is found, it returns undefined.
• letterPositions: Returns all the indices (zero-based positions) in a string where each character is found.
• tail: Returns the tail (every element except the first element) of an array.
• takeUntil: Takes in two parameters and returns a slice of the array with elements taken from the beginning.
• middle: Returns the middle element(s) of an array.
• map: Creates a new array populated with the results of calling a provided function on every element in the calling array.
• without: Returns a subset of a given array, removing unwanted elements.
• head: Returns the first element of an array.