@sergey.barch/twotide v1.0.0

Twotide

A primitve immitation of Lodash library.

Purpose

BEWARE: This library was published for learning purposes. It is not intended for use in production-grade software.

Usage

Install it:

npm install @sergey.barch/twotide

Require it:

const _ = require('@sergey.barch/twotide');

Call it:

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

Documentation

The following functions are currently implemented:

• tail: Tail is meant to be every element except the head (first element) of the array.
• middle: Returns an array with only the middle element(s) of the provided array.
• assertArraysEqual : Another function for asserting that two arrays are equal.
• assertEqual: The console.assert function prints to the console when an expected outcome is not met (fails).
• head : A commonly used function for arrays is to retrieve the first element from the array.
• assertObjectsEqual : This assertion function will make use of your eqObjects function for object comparison.
• countLetters : This function should take in a sentence (as a string) and then return a count of each of the letters in that sentence.
• countOnly : countOnly will be given an array and an object. It will return an object containing counts of everything that the input object listed.
• eqArrays : Implementation of a function that can compare two arrays for a perfect match.
• eqObjects : This will take in two objects and returns true or false, based on a perfect match.
• findKey : It 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 : 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.
• letterPositions : Use this function to compare the letters, and their expected positions.
• map: The map function will return a new array based on the results of the callback function.
• takeUntil: The function will return a "slice of the array with elements taken from the beginning." It should keep going until the callback/predicate returns a truthy value.
• without: Return a subset of a given array, removing unwanted elements.