@ife2020/lotide v1.0.1

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 @ife2020/lotide

Require it:

const _ = require('@ife2020/lotide');

Call it:

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

Documentation

• head(arr): description - retrieves the first element from an array.
• tail(arr): description - retrieves the entire array except for the first item/element.
• middle(arr): description - retrieves the middle elements within the array to return them in array.
• without(source, itemToRemove): description - removes items from the source array provided an array of items to remove.
• takeUntil(arr, callback): description - returns a slice of the array with elements taken from the beginning up until the results of the callback function.
• map(array, callback): description - returns a new array based on teh results of the callback function.
• letterPositions(string): description - takes in sentence (as a string) and returns all the indices (zero-based positions) in the string where each character is found.
• findKeyByValue(obj, value): description - takes in an object and a value. It scans the object and returns the first key which contains the given value. If no key with that given value is found, then it should return undefined.
• findKey(obj): description - scans the object and returns the first key for which the callback returns a truthy value. If no key is found, then it should return undefined.
• countLetters(string): description - takes in sentence (as a string) and returns a count of each of the letters in that sentence.
• countOnly(arr, obj): description - takes in a collection of items (array) and returns counts for a specific subset of those items based on the object.
• eqObjects(obj1, obj2): description - compares to objects for a perfect match.
• assertEqual(actual, expected): description - compares identical and non-identical strings or numbers (primitive data only).
• eqArrays(arr1, arr2): description - compares two arrays for a perfect match.
• assertArraysEqual(actual, expected): description - provides a console log message of whether or not both arrays match the expected output.
• assertObjectsEqual(actual, expected): description - provides a console log message of whether or not both objects match the expected output.