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 @leapehar/lotide

Require it:

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

Call it:

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

Documentation

The following functions are currently implemented:

• head(...): returns the head of an array

• tail(...): returns the tail of an array

• middle(...): returns the middle of an array

• assertArraysEqual(): takes in two arrays as arguments and returns a string saying whether or not the two arrays are equal.

• assertEqual(): compares the actual results from a given function and the expected results

• assertObjectsEqual(): takes two objects as arguments, and returns a string saying whether or not the two arrays are equal.

• countLetters(string): returns count of each character in a string in the form of an object.

• countOnly(): counts the amount of specified items in a given array. Takes an array as its first argument, and an object as its second argument. The object should specify as its key the array value to be counted, and a boolean an the corresponding value. Ex. countOnly(firstNames, { "Jason": true, "Karima": true, "Fang": true, "Agouhanna": false })

• eqArrays(): compares two arrays and returns boolean.

• eqObjects(): compares two onjects and returns boolean.

• findKey(object, callback): Takes in an object and a callback. Returns the first key for which the callback returns a truthy value. If no key is found, it returns undefined.

• findKeyByValue(object, value): Finds an object's key by its value. Takes an object and the value in the object that you are trying to find as arguments.

• letterPositions(string): returns the indexes of each character in a in an object.

• map(): Takes in two arguments: An array to map and A callback function. Returns a new array based on the results of the callback function.

• takeUntil(): Takes in two parameters: The array to work with and a callback function. Returns a "slice of the array with elements taken from the beginning.

• without(): Returns a subset of a given array with unwanted elements removed.