@ivette_suarez/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 @ivette_suarez/lotide

Require it:

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

Call it:

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

Documentation

The following functions are currently implemented:

• assertArraysEqual(array1, array2): Compare two arrays and return according message "Assertion passed" if they are equal or "Assertion failed" if they are not.
• assertEqual(actual, expected): Compare two primitive values and return according message "Assertion passed" if they are equal or "Assertion failed" if they are not.
• assertObjectsEqual(actual, expected): Compare two objects and return according message "Assertion passed" if they are equal or "Assertion failed" if they are not.
• countLetters(sentence): Take in a sentence (as a string) and then return an object with the count of each of the letters in that sentence where the key is the letter and the value is the count.
• countOnly(sentence): Given an array and an object function will return an object containing counts of all the strings found in the input array(keys), and their respective counts(values)
• eqArrays(array1, array2): Take in two arrays and returns true or false, based on a perfect match.
• eqObjects(object1, object2): Take in two objects and returns true or false, based on a perfect match.
• findKey(obj, callback): Takes in an object and a callback, scan the object and return the first key for which the callback returns a truthy value, if no key is found, then return undefined.
• findKeyByValue(obj, value): Take in an object and a value, scan the object and return the first key which contains the given value and if no key with that given value is found, then it should return undefined.
• flatten(nestedArray): Take in an array containing elements including nested arrays of elements, and return a "flattened" version of the array
• head(array): Returns the first item of the array.
• letterPositions(sentence): Take in a sentence (as a string) and then return an object, where each position of the letters in that sentence is an array of positions as the value and the key is the letter.
• map(array, callback): Take in two arguments, an array to map and a callback function, return a new array based on the results of the callback function.
• middle(array): Take an array and return an array with only the middle element(s) of the provided array.
• tail(array): Returns the "tail" of an array: everything except for the first item.
• takeUntil(array, callback): Take in two arguments an array to map and a callback function and return an array of items by collecting them until the callback provided returns a truthy value.
• without(sourceArray, itemsToRemoveArray): Take in a source array and a itemsToRemove array and return a new array with only those elements from source that are not present in the itemsToRemove array.