@faadhil2/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 @faadhil2/lotide

Require it:

const _ = require('@faadhil2/lotide');

Call it:

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

Documentation

The following functions are currently implemented:

• head(array) : Takes in an array parameter and returns the head of the array.
• tail(array) : Takes in an array parameter and returns the tail of the array.
• middle(array) : Takes in an array parameter and returns the middle element of the array.
• assertArraysEqual(array1, array2) : Takes in two array parameters and asserts if they are equal.
• assertEqual(actual, expected) : Takes in two values as parameters and asserts if they are equal.
• assertObjectsEqual(actual, expected) : Takes in two object parameters and asserts if they are equal.
• countLetters(string): Takes in a sentence (as a string) and then return a count of each of the letters in that sentence.
• countOnly(array, object) : Takes in an array and an object as parameters. It will return an object containing counts of everything that the input object listed.
• eqArrays(array1, array2) : Takes in two arrays as parameters and returns true/false if they equal.
• eqObjects(object1, object2) : Takes in two objects as paramters and returns true/false if they equal.
• findKey(object, callback) : Takes in an object and a callback. It should scan 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, string) : Takes in an object and string as parameters. It returns the object's key which contains the value of the string parameter.
• letterPositions(string) : Takes in a string as a parameter which will return all the indices (zero-based positions) in the string where each character is found.
• map(array, callback) : Takes in an array and callback as paramters. It applies the callback to the array and returns the result.
• takeUntil(array, callback) : Takes in an array and callback as parameters and returns a "slice of the array with elements taken from the beginning." It should keep going until the callback/predicate returns a truthy value.
• without(array1, array2) : Takes in two arrays as parameters and will return a subset of a the first array, removing elements contained in the second array.