@quinnvoker/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 @quinnvoker/lotide

Require it:

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

Call it:

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

Documentation

The following functions are currently implemented:

• assertArraysEqual(actual, expected): asserts that given arrays are equal, and prints pass or fail to command line
• assertEqual(actual, expected): asserts that given primitive values are equal, and prints pass or fail to command line
• assertObjectsEqual(actual, expected): asserts that given objects are equal, and prints pass or fail to command line
• countLetters(string): returns an object containing all characters which appear in the string, along with how many times they appear
• countOnly(allItems, itemsToCount): takes an array allItems and an array itemsToCount and returns an object containing the count of times each item appears in the main array
• eqArrays(arrayA, arrayB): returns true if both arrays contain the same data, false otherwise. can work with nested arrays
• eqObjects(objectA, objectB): returns true if both objects have the same properties and values, false otherwise. can handle nested objects
• findKey(object, callback): runs callback on each property of the object, and returns the first key in which callback returns true.
• findKeyByValue(object, value): returns key of first property of object which has a value of value
• flatten(array): takes a nested array and returns an array that has no nesting, but retains all elements in order
• head(array): returns the first element of a given array
• letterPositions(string): returns an object with all the characters that appear in string as keys, and an array of the indices in the string in which they appear as values
• map(array, callback): calls callback for each element of array, and returns a new array containing the results
• middle(array): returns the middle element of a given array
• tail(array): takes an array and returns a new array without the first element
• takeUntil(array, callback): takes an array, runs callback on each element, and returns an array containing all of the elements up until the first point at which callback returned true
• without(array, items): takes an array, and returns a copy of it with all of the elements of items removed from it