A mini clone of the [Lodash] library

Usage no npm install needed!

<script type="module">
  import christophertoyLotide from 'https://cdn.skypack.dev/@christophertoy/lotide';



A mini clone of the Lodash library.


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.


Install it:

npm install @christophertoy/lotide

Require it:

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

Call it:

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


The following functions are currently implemented:

  • assertArraysEqual...): compares 2 arrays and prints out a message tellin us if they match
  • assertEqual(...): compares the 2 values it takes in and prints out a message telling us if they match
  • assertObjectsEqual(...): compares 2 objects and prints out a message tellus us if they match
  • countLetters(...): takes a string and outputs an object with counts of each letter
  • countOnly(...): takes an array and an object and will return an object with counts of everything the object listed
  • eqArrays(...): compares 2 arrays and returns true or false, depending on the match
  • eqObjects(...): takes 2 objects and returns true or false, depending on the match
  • findKey(...): takes an object and call back, scans the object and returns the first key for which the callback returns a truthy value
  • findKeyByValue(...): takes in an object and value, returns first key given the value
  • head(...): retrives the first element from the array
  • letterPositions(...): takes a string and will return all the indices where each letter is found
  • map(...): creates new array with the results of calling a provided function on each element
  • middle(...): takes an array and returns the middle elements
  • tail(...): returns the all the elements of the array except for the first element
  • takeUntil(...): return a slice of the array of elements until the callback returns true
  • without(...): compares 2 arrays and filters unwanted items