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 @libinali/lotide
Require it:
const _ = require('@libinali/lotide');
Call it:
const results = _.tail([1, 2, 3]) // => [2, 3]
The following functions are currently implemented:
-
assertArraysEqual(actual, expected): This function takes in two arrays and console.log an appropriate message to the console. -
assertEqual(actual, expected):This function compares the two values it takes in, and prints out a message telling us if they match or not. -
assertObjectsEqual(actual, expected): This function takes in two objects and console.log an appropriate message to the console. -
countLetters(str): This function takes in a sentence (as a string) and then return a count of each of the letters in that sentence. -
countOnly(allItems, itemsToCount): This function will be given an array and an object. It will return an object containing counts of everything that the input object listed. -
eqArrays(arr1, arr2): This function takes in two arrays and returns true or false, based on a perfect match. -
eqObjects(obj1, obj2): This function take in two objects and returns true or false, based on a perfect match. -
findKey(object, callback): This function takes in an object and a callback, It scans the object and return the first key for which the callback returns a truthy value. -
findKeyByValue(key, value): This function takes in an object and a value. It should scan the object and return the first key which contains the given value. -
head(arr): This function returns the first item in the array. -
letterPositions(sentence): This function will return all the indices (zero-based positions) in the string where each character is found. -
map(array, callback): This function takes in an array and a callback function, and returns a new array based on the results of the callback function. -
middle(arr): This function will take in an array and return the middle-most element(s) of the given array. -
tail(arr): This function returns the "tail" of an array: everything except for the first item (head) of the provided array. -
takeUntil(array, callback): This function will keep collecting items from a provided array until the callback provided returns a truthy value. -
without(source, itemsToRemove): This function will return a subset of a given array, removing unwanted elements.