@mattbed/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 @mattbed/lotide

Require it:

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

Call it:

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

Documentation

The following functions are currently implemented:

• head([...]): Retrieves the first element of an input array.
• tail([...]): Retrieves the remaining elements (after the first) of an array.
• middle([...]): Retrieves the middle elements of an array.
• countLetters('...'): Counts the instances of each letter that appears in a given string.
• countOnly([...], {...}): Given an array and an object with boolean values, will count only the truthy values from the object that appear in the array.
• findKey({...}, callback()): Returns the first key that returns a truthy value for a given callback function.
• findKeyByValue({...}, var): Returns a key from a given object that corresponds with a given value.
• letterPositions('...'): Returns a list of indices for each letter occurence in a given string.
• map([...], callback()): Applies a callback function to a given array.
• takeUntil([...], callback()): Returns an array up until a point provided by a callback function.
• without([...], [...]): Removes items listed in the second array from the first array, returning a new array.
• assertArraysEqual(...): Compare two arrays for a perfect match and outputs a colourful assertion message.
• assertEqual(var1, var2): Compare two values and outputs a colourful assertion message.
• assertObjectsEqual({...}, {...}): Compare two objects and outputs a colourful assertion message.
• eqArrays([...],[...]): Compares two arrays for a perfect match.
• eqObjects({...}, {...}): Compare two objects for a perfect match.