@mdever/lotide NPM

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 @username/lotide

Require it:

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

Call it:

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

The following functions are currently implemented:

head,: returns the first element of a given array
tail,: returns everything except the first element of a given array
middle,: returns the middle element(s) of an array. One element if the array has an odd number of elements and two elements if the array has an even number of elements
assertArraysEqual,: takes in an actual and expected array and prints to the console whether or not they are equal
assertObjectsEqual,: takes in an actual and expected object and prints to the console whether or not they are equal
countLetters,: takes a string and counts how many of each charcter are in the string and outputs the result as an object
countOnly,: counts items in an array and returns an object with the number of each item
eqArrays,: compares arrays for an exact match
eqObjects,: compares objects for an exact match
findKey,: function that searches an object and return the first key that returns a truthy value from the callback function passed to it
findKeyByValue,: takes in an object and a value and returns the first key in the object with that value
letterPositions,: takes a string and gets the index of each instance of each letter and returns an object containing arrays of the index positons
map,: takes an array and a callback function and returns a new array based on the callback function
takeUntil,: takes an array and a callback function and will return values in an array until the callback function returns true
without: removes unwanted elements from an array

4 years ago