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 @vanessalinda/lotide
Require it:
const _ = require('@vanessalinda/lotide');
Call it:
const results = _.tail([1, 2, 3]) // => [2, 3]
Documentation
The following functions are currently implemented:
-
head()
: retrieves the first item in the array. -
tail()
: retrieves every element except the head (first element) of the array. -
assertEqual()
: compares the two values it takes in and print out a message telling us if they match or not. -
eqArrays()
: takes in two arrays and returns true or false, based on a perfect match. -
assertArraysEqual()
: take in two arrays and console.log an appropriate message to the console. -
without()
: returns a subset of a given array, removing unwanted elements. -
flatten()
: takes in an array containing elements including nested arrays of elements, and return a "flattened" version of the array. -
middle()
: takes in an array and return the middle-most element(s) of the given array. -
countOnly()
: takes in a collection of items and return counts for a specific subset of those items. -
countLetters()
: takes in a sentence (as a string) and then return a count of each of the letters in that sentence. -
letterPositions()
: returns all the indices (zero-based positions) in the string where each character is found. -
findKeyByValue()
: takes in an object and a value. It should scan the object and return the first key which contains the given value. If no key with that given value is found, then it should return undefined. -
eqObjects()
: take in two objects and returns true or false, based on a perfect match. -
assertObjectsEqual()
: takes in two objects and console.log an appropriate message to the console. -
map()
: creates a new array populated with the results of calling a provided function on every element in the calling array. -
takeUntil()
: returns a "slice of the array with elements taken from the beginning." It should keep going until the callback/predicate returns a truthy value. -
findKey()
: takes in an object and a callback. It should scan the object and return the first key for which the callback returns a truthy value. If no key is found, then it should return undefined.