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:

• assertArraysEqual: console logs a message indicating if 2 given arrays are or not equal
• assertEqual: console logs a message indicating if 2 given primitive values are or not equal
• assertObjectsEqual: console logs a message indicating if 2 given objects have or not the same properties
• countLetters: receives a string as argument and returns an object with the all the letters from the string as key and the times that letter is repeated as value
• countOnly: returns how many instances of each string were found in a given string array
• eqArrays: returns true if 2 given arrays are equal and false if they are not
• eqObjects: returns true if 2 given objects have the same properties and false if they don't
• findKey: takes an object and a callback, scans the object and returns the first key similar to the callback result.
• findKeyByValue: takes an object and a property value as arguments and returns the correspondent key or undefined if the key is not in the object
• flatten: transform a 1 level matrix into an array with the values that it contains.
• head: console logs a message indicating if 2 given primitive values are or not equal
• letterPositions: takes a string and a letter and returns an array with the indexes where that letter was found in the string.
• middle: returns an array with the middle value of a given array. If the given array 0, 1 or 2 values it returns an empty array; if it has more than 3 values and its quantity is even it returns 2 middle value and if the quantity is odd it returns the middle value
• tail: takes an array and returns a copy without the first value
• takeUntil: returns a new array taking the elements from the beginning of given array stoping when the condition in a given callback function is fullfilled
• without: takes 2 arrays, 1 with a set of values and other with the values to be removed from the first one and returns an array with the remaining values