@thefonzie-codes/lotide v1.0.0

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 thefonzie-codes/lotide

Require it:

const _ = require('thefonzie-codes/lotide');

Call it:

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

Documentation

The following functions are currently implemented:

• head(array): Returns the head or first item in an array.
• tail(array): Returns the original array, minus the head(or first item).
• middle(array): Returns the middle item(s) in an array -- 1 if the array length is odd, 2 if even.
• eqArrays(array1, array2): Returns true if arrays are identical and false if not.
• assertEqual(item1, item2): Returns 🟢🟢🟢 Assertion Passed: ${actual} === ${expected} if entries are equal, returns 🔴🔴🔴 Assertion Failed: ${actual} === ${expected} if not. Will only work on simple data types.
• assertArraysEqual(array1, array2): Returns 🟢🟢🟢 Assertion Passed: ${actual} === ${expected} if arrays are equal, returns 🔴🔴🔴 Assertion Failed: ${actual} === ${expected} if not. Will only work on arrays.
• assertObjectsEqual(object1, object2): Returns 🟢🟢🟢 Assertion Passed: ${actual} === ${expected} if objects are equal, returns 🔴🔴🔴 Assertion Failed: ${actual} === ${expected} if not. Will only work on objects.
• countLetters(string): Counts the letters in a string and returns them in an object formatted {a: x, b: x,...}
• countOnly(array, object): Takes an array and an object as parameters. It will return an object that contains the counts of each item that had a truthy value in the input object.
• eqObjects(object1, object2): Returns true if both input objects are identical.
• findKey(object, callback): Takes an object an a callback. It will return the first key that returns a 'truthy' value.
• findKeyByValue(object, value): Takes an object and a value. Will search for the first key that contains that value.
• letterPositions(string): Takes a string. It will identify all the separate letters in a string and return an object containing each letter's position. eg. "hello" will return{ h: 1, e: 2, l:3, 4, o:5}
• map(array, callback): Takes an array and a callback. The function will apply the callback to the array and return the modified array.
• takeUntil(array, callback): Takes an array and a callback. It will iterate through the array until the entry returns a truthy value when compared to the callback.
• without(array1, array2): Takes 2 arrays. It will take each item in array 2, and if there are matching entries in array 1, they will be removed. It will return a copy of array1 without the matching entries. It does not modify the original array.