@harjeetk/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 @harjeetk/lotide

Require it:

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

Call it:

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

Documentation

The following functions are currently implemented:

• assertEqual(actual, expected): Compare the two values it takes in and print out a message telling us if they match or not.
• assertArraysEqual(array1, array2): Compare two arrays and print out a message telling us if they match or not.
• assertObjectsEqual(object1, object2): The function will take in two objects and print out a message telling us if they match or not.
• countLetters(string): The function takes in a sentence (as a string) and then return a count of each of the letters in that sentence.
• countOnly(array, object): The function will be given an array and an object. It will return an object containing counts of everything that the input object listed.
• findKey(array, callback): The function 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): The function takes in an object and a value. It scans the object and return the first key which contains the given value. If no key with that given value is found, then it return undefined.
• flatten(nestedArray): The function takes in an array containing elements including nested arrays of elements, and return a "flattened" version of the array.
• head(array): Retrieves the first element from the array.
• letterPositions(string): The function returns all the indices (zero-based positions) in the string where each character is found.
• map(array, callback): returns a new array based on the results of the callback function.
• middle(array): Returns the middle elements of an array.
• tail(array): Retrieves every element except the head (first element) of the array.
• takeUntil(array, callback): The function keeps collecting items from a provided array until the callback provided returns a truthy value.
• without(sourceArray, itemsToRemoveArray): The function returns a subset of a given array, removing unwanted elements.