@stellamaris/stellamaris-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 @stellamaris/lotide

Require it:

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

Call it:

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

Documentation

The following functions are currently implemented:

• head(...) : retrieves the first element from the array
• tail(...) : retrieves the last element from the array
• middle(...) : retrieves the middle element from the array
• assertArraysEqual(...) : take in two arrays and console.log an appropriate message to the console
• assertEqual(...) : compares two values it takes in and print out a message if they match or not
• countLetters (...) : takes in a string and returns an object where each unique character encountered in the string is a property of the object and the value for that property/key should be the number of occurrences for that character
• countOnly(...) : take in a collection of items and return counts for a specific subset of those items
• eqArrays(...) : takes in two arrays and returns true or false, based on a perfect match
• letterPositions(...) : will return all the indices (zero-based positions) in the string where each character is found
• map(...) : will take in two arguments: an array to map and a callback function; and will return a new array based on the results of the callback function.
• without(...) : will return a subset of a given array, removing unwanted elements

• findKeyByValue (...) : takes in an object and a value. It should scan the object and return the first key which contains the given value

• findKey(...) : will take in an object and a callback. It should scan the object and return the first key for which the callback returns a truthy value

• takeUntil(...) : will keep collecting items from a provided array until the callback provided returns a truthy value
• eqObjects (...) : will take in two objects and returns true or false, based on a perfect match; Returns true if both objects have identical keys with identical values.
• assertObjectsEqual (...): will take in two objects and returns true or false, based on a perfect match; Returns true if both objects have identical keys with identical values.