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 @hosam-dahrooge/lotide

Require it:

const _ = require(@hosam-dahrooge/lotide');

Call it:

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

Documentation

The following functions are currently implemented:

• assertArraysEqual: compares 2 arrays then logs our assertion.
• assertObjectEqual: compares 2 objects then logs our assertion.
• assertEqual: compares 2 primitive data types using the strict equality operator.
• countLetters: counts each letter in a given string and returns an object with the number of times each letter (key) is repeated.
• countOnly: accepts 2 arguments an array and an object. Counts the elements in the array based on the condition in the object then returns an object with element/number of times found as key/value pairs.
• eqArrays: compares 2 arrays recursively and return a boolean based on the result.
• eqObjects: compares 2 objects recursively and return a boolean based on the result.
• findKey: accepts 2 arguments, an object and a callback function. returns the first key in the object that meets the condition in the callback function.
• findKeyByValue: accepts 2 arguments, an object and a string. returns the first key in the object that its value equals the array.
• flatten: accepts 1 argument, an array. flattens the array (gets rid of all nesting) and returns a new 1 dimensional array with all the values from the given array.
• head: accepts 1 argument, an array. returns the first element in an array.
• letterPositions: accepts 1 argument, a string. return an object with the number of times each letter was repeated.
• map: accepts 2 arguments, an array and a callback function. Loops through the array and runs the callback function with each element in the array then returns a new array with the modified values.
• middle: accepts 1 argument, an array. Returns the middle element if the array length was odd. Returns the 2 middle elements in an array if the array length was even.
• tail: accepts 1 argument, an array. Returns a new array without the first element from the given array.
• takeUntil: accepts 2 arguments, an array and a callback function. Loops through a given array until the condition in the callback function is met then returns an array with the values looped through till that point.
• without: accepts 2 arguments, 2 arrays. Returns a new array by removing the elements present in the second given array from the first given array.