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 @bbjarvis/lotide

Require it:

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

Call it:

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

Documentation

The following functions are currently implemented:

• head(array): Function takes in an array and returns the first element
• tail(array): function take an array and returns the tail of it
• middle(array): takes array, returns middle element or elements
• assertArraysEqual(actual, expected): Compares 2 arrays using "eqArrays" and return a pass/fail message
• assertEqual(actual, expected): function takes in two args and checkes if they are equal
• assertObjectEquals(actual, expected): compare two arrays and return "true" or "false" if perfect match
• countLetters(string): counts leters in a string
• countOnly(allItems, itemsToCount): Takes an array and an object. Returns an object containing counts of everything that the input object listed
• eqArrays(arr1, arr2): compare two arrays and return "true" or "false" if perfect match
• eqOjects(bject1, object2): Returns true if both objects have identical keys with identical values. Otherwise you get back a big fat false!
• findKey(object, callback): function takes in an object and a callback. 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 undefinde
• findKeyByValue(object1, value): Finds the key in an object that matches given value
• flatten(array): Takes in an array of arrays and flattens into one array
• letterPositions(string): function that takes in a string and returns all indices of letter positions in the string
• map(array, callback): function that takes in an array and a callback and returns a new array based on the results of the callback on each item in the array
• takeUntil(array, callback): function that takes in an array and callback and returns a slice of the array based on the criteria specified in the callback
• without(source, itemsToRemove): function that takes in a source array and an itemsToRemove arrays and returns only the items from the source array that are not in the itemsToRemove array