@kfagnan/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 @kfagnan/lotide

Require it:

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

Call it:

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

Documentation

The following functions are currently implemented:

• head(array): Returns the first element in an array.
• tail(array): Returns a newArray containing everything but the first element in the initial array.
• middle(array): Returns the middle of an array as a new array
• eqArrays(array1, array2): compares if arrays are equal.
• eqObjects(object1, object2): compares if objects are equal.
• assertEqual(actual, expected): Checks if the actual and expected arguements are equal.
• assertArraysEqual(array1, array2): compares if arrays are equal and returns assert message. assertObjectsEqual(object1, object2): compares if objects are equal and returns assert message.
• countLetters(string): Counts the number of letters in a string.
• findKey(obj, callback): Scans 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(object, value): searches an object for a key when given its value
• map(array, callback): Creates a new array of values by running each element in array through the callback.
• countOnly(items): takes a collection of items and return counts for a specific subset of those items.
• takeUntil(array, callback): collects items from a provided array until the callback provided returns a truthy value.
• without(array, itemsToRemove): Return a subset of a given array, removing unwanted elements.
• letterPositions(string): returns an array with all the positions in which a certain letter occurs.