@ryanthedev/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 @ryanthedev/lotide

Require it:

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

Call it:

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

Documentation

The following functions are currently implemented:

• assertArraysEqual(arr1, arr2): Outputs a console.log message stating if arr1 and arr2 are equivalent arrays
• assertEqual(actual, expected): Outputs a console.log message stating if actual and expected are equal
• assertObjectsEqual(obj1, obj2): Outputs a console.log message stating if obj1 and obj2 have the same key-value pairs
• countLetters.js(string): Returns an object with the keys being the letters that occur in string and the values being the number of times the letter occurs in string
• countOnly(arr, obj): Returns an object containing the counts of everything that obj listed
• eqArrays(arr1, arr2): Returns true if arr1 and arr2 are equivalent, returns false if otherwise
• eqObjects(obj1, obj2): Returns true if obj1 and obj2 have the same key-value pairs, returns false if otherwise
• findKey(obj, callback): Returns the first key in obj for which the callback returns a truthy value, returns undefined if no key is found
• findKeyByValue(obj, value): Returns the key in obj which has the the value value, returns undefined if no key exists
• flatten(arr): Returns a flattened version of arr given that arr has at most, one level of nesting
• head(arr): Returns the first element in arr. If arr is empty, returns an empty array
• letterPosition(string): Returns an object where they keys are the letters that occur in string and the values are all the indices where each letter is found.
• map(arr, callback): Returns a new array consisting of the values of returned by callback on each of the elements in arr
• middle(arr): Returns an array consisting of the middle element(s) in arr
• tail(arr): Returns an array consisting of the elements in arr, excluding the first element
• takeUntil(arr, callback): Returns a slice of arr with elements being taken from the beginning until the callback returns a truthy value
• without(source, itemsToRemove): Returns a new array with only those elements from source that are not present in itemsToRemove