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 @elena_chernikova/lotide

Require it:

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

Call it:

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

Documentation

The following functions are currently implemented:

• function1(head): the function returns the first item in the array;
• function2(tail): the function returns the "tail" of an array: everything except for the first item (head) of the provided array;
• function3(assertEqual): the function compares two values it takes in and print out a message telling us if they match or not;
• function4(eqArrays): the function compares two arrays;
• function5(assertArraysEqual): the function for asserting that two arrays are equal;
• function6(assertObjectsEqual): the function for asserting that two objects are equal;
• function7(countOnly): the function takes in a collection of items and returns counts for a specific subset of those items;
• function8(countLetters): the function takes in a sentence (as a string) and then return a count of each of the letters in that sentence;
• function9(letterPositions): the function returns all the indices (zero-based positions) in the string where each character is found;
• function10(findKeyByValue): the function takes in an object and a value. It should scan the object and return the first key which contains the given value;
• function11(eqObjects): the function takes in two objects and returns true or false, based on a perfect match;
• function12(findKey): 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;
• function13(map): the function takes in two arguments: an array to map, a callback function. The map function will return a new array based on the results of the callback function;
• function14(takeUntil): the function takes in two arguments: an array and a callback function. 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;
• function15(without): the function takes in a source array and a itemsToRemove array. It returns a new array with only those elements from source that are not present in the itemsToRemove array.
• function16(middle): the function The middle function returns an array with only the middle element(s) of the provided array;