@nchlsreimer/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 @username/lotide

Require it:

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

Call it:

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

Documentation

The following functions are currently implemented:

head: -prints all but the last element in a given input array

tail: -prints all but the first element of a given input array

middle: -determines the length of a given array and returns the single middle element if length is odd and the two middle elements if length is even.

map: -will return a new array based based of and based on a given array input and callback func input

countOnly: -takes in a collection of items and a callbackfunc as inputs and returns counts for a specific subset of those items based on the callback func.

without: -takes two seperate arrays (source, itemsToRemove) and returns a new array with only those elements from the source array that are not present in the itemsToRemove array.

takeUntil: -the fucntion outputs a new array made up of the elements from the arg array starting at index0 and stopping when the value of the current element returns truthy when run through the call back funcs.

countLetters: -takes a string and returns an object with a seperate key for each letter and a value that corresponds to how many times that letter was in the string input arg.

letterPositions: -will return all the indices(zero-based positions) in the arg input string where each character is found.

findKey: -takes in an object and a call back func, its scans the object and returns the first key for which the callback func returns a truthy value.

findKeyByValue: -takes an object and a value as its arguments, it scans the object and returns the first key which contains the given value.

eqArrays: -takes in two arrays and returns true or false, based on a perfect match. NOTE: eqArrays does NOT return true for nested arrays or arrays of objects that are identical

eqObjects: -take in two objects and returns true or false, based on a perfect match.

assertEqual: -returns a console.log satement if actual input is directly equal to expected input or if it is not. NOTE: does not work with array inputs, use assertArraysEqual instead NOTE: does not work with object inputs, use assertObjectEqual instead

assertArraysEqual: -take in two arrays and console.log an appropriate message to the console built of the code of assertEqual

assertObjectsEqual: -take in two arrays and console.log an appropriate message to the console built of the code of assertEqual