@omaryrajaa/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 @omaryrajaa/lotide

Require it:

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

Call it:

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

Documentation

The following functions are currently implemented:

• head(array): It should not return the first element as an array. It should simply return the element itself.
• tail(array): It should return the "tail" of an array: everything except for the first item (head) of the provided array.
• middle(array): It should return the middle-most element(s) of the given array.
• without(sourceArray, itemsToRemove): It should return a subset of a given array, removing unwanted elements.
• takeUntil(array, callback): It should return a "slice of the array with elements taken from the beginning." It should keep going until the callback/predicate returns a truthy value.
• map(array, callback): It should return a new array based on the results of the callback function
• letterPositions(sentence): It should return all the indices (zero-based positions) in the string where each character is found.
• findKeyByValue(ObjectA, value): It should scan the object and return the first key which contains the given value. If no key with that given value is found, then it should return undefined.
• findKey(object1, 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.
• countOnly(allItems, itemsToCount): It should take in a collection of items and return counts for a specific subset of those items.
• countLetters(sentence): It should take in a sentence (as a string) and then return a count of each of the letters in that sentence.
• eqObjects(object1, object):It should Returns true if both objects have identical keys with identical values.Otherwise you get back a big fat false!
• eqArrays(array1, array2): It takes in two arrays and returns true or false, based on a perfect match.

• head): returns the first element in an array.

• function(tail): remove the head of the array and returns the rest.

• function(countLetters): returns an object which contains each letter in a string with its number of occurrences.

• function(countOnly): counts items in an array that satisfies a given array of items.

• function(eqArrays): compares two arrays return Boolean.

• function(eqObjects): compares two objects return Boolean.

• function(findKey): search the object and return the first key which satisfies a given callback.

• function(findKeyByValue): returns the key in an object where its value matches a given value.

• function(letterPositions): returns an object with every letter in a string (as key) and its position (as value).

• function(map): creates a new array with the result of calling a callback function applied on every element in the calling array.

• function(middle): returns the middle element(s) of an array.

• function(takeUntil): returns a slice of the array with elements taken from the beginning until a callback function is satisfied.