@mdzwink/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 @mdzwink/lotide

Require it:

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

Call it:

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

Documentation

The following functions are currently implemented:

• head(...): Returns the head of an array (value at index 0)
• tail(...): Returns the tail of an array (every value excluding the head value)
• middle(...): Returns the middle most value(s) in a given array.
• assertArraysEqual(...): Tests if the values and order of two given arrays are equal and logs confirmation of whether or not they are.
• assertEqual(...): Tests if two given values are equal and logs confirmation of whether or not they are.
• countOnly(...): Given an array and an object returns a new array. New array includes values present in both the array and object and a count of how many times the values in the object apear in the array
• eqArrays(...): Tests if the values of two arrays are identical. Returns true if yes and false if not.
• map(...): Takes an array and a callback function. Loops through array and runs each value through callback function. Returns new array with return value of callback function.
• without(...): Takes in two array. Returns a new array containing only the values not present in the second array.
• assertObjectsEqual(...): Tests if two given objects are identical and logs confirmation of whether or not they are.
• countLetters(...): Returns an object with each letter in a given string as a key with a value showing the number of time that letter appears in the string.
• eqObjects(...): Tests if two given objects are identical and true if they are and false if they are not.
• findKey(...): Takes an object and a callback function. Returns the first key that evaluates to true when passed through given callback function.
• findKeyByValue(...): Takes an object and a value. Returns the first key that stores a value equal to given value.
• letterPositions(...): Takes a string and returns an object with each letter as a key and an array containing each index at which that letter appears in the given string.
• takeUntil(...): Takes an array and a callback function. Inputs each value from array into callback function and pushes same value into new array until callback evaluates to true. Returns new array.