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 @winnie-li/lotide

Require it:

const _ = require('@winnie-li/lotide');

Call it:

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

Documentation

The following functions are currently implemented:

• assertArraysEqual(actual, expected): return a message to tell if two arrays are the same
• assertEqual(actual, expected): return a message to tell if two values are the same
• assertObjectsEqual(actual, expected): return a message to tell if two objects are the same
• countLetters(string): take in a sentence (as a string), and an object include the count of each letter
• countOnly(allItems, itemsToCount): intake an array and an object, return an object containing counts of the items we want to could bese on the itemsToCount object. allItems: an array of strings that we need to look through. itemsToCount: an object specifying what to count
• eqArrays(arr1, arr2): compare two arrays and returns true of false, based on a perfrct match
• eqObjects(object1, object2): returns true if both objects have identical keys with identical values
• findKey(object, callback): take in an object and a callback, scan the object and return the first key for which the callback returns a truthy value.
• findKeyByValue(object, value): scan the input object, return the first key which contains the input value
• head(arr): return the first element of the input array
• letterPositions(sentence): return all the indices (zero-based positions) in the string where each character is found.
• map(array, callback): returns a new array based on the result of the call back function
• middle(arr): return an array with only the middle element(s) of the given array
• tail(arr): return a new array include all the elements from the input array except the first element
• takeUntil(array, callback): return a slice of the array with elements taken from the beginning. Keep going until the callback/predicate returns a truthy value
• without(source, itemsToRemove): return a new array with only those elements from source that are not present in the itemsToRemove array.