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 @vikamir/lotide
Require it:
const _ = require('@vikamir/lotide');
Call it:
const results = _.tail([1, 2, 3]) // => [2, 3]
The following functions are currently implemented:
-
assertArraysEqual(arr1, arr2)Description:function for asserting that two arrays are equal and console.log an appropriate message to the console. parameters: arr1(array) arr2(array) -
assertEqual(actual, expected)Description: function compare the two values it takes in and print out a message telling us if they match or not parameters; actual: the given value what do we think the answer expected: whar should be the value -
assertObjectsEqual(Object1, Object2)Description:function for asserting that two obtects are equal and console.log an appropriate message to the console. parameters: object1 object that compered to the other object object 2 -
countLetters(words)Description:function should take in a sentence (as a string) and then return a count of each of the letters in that sentence parenetes: words: text(string) -
countOnly(allItems, itemsToCount)Description: Counts the occurrences of specific items in an array based on a provided criteria. Parameters: allItems (Array): The array of items to be counted. itemsToCount (Object): The object specifying the items to count and their criteria. Returns: An object containing the counts of the specified items. -
eqArrays(arr1, arr2)Description :functions that takes in two arrays and returns true or false, based on a perfect match Parameters: arr1(array): arr2(array): -
eqObjects(object1, object2)Description :functions that takes in two objects and returns true or false, based on a perfect match parameters: object1 object that compered to the other object object 2 -
findKey(object, callback)Description: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 parameters: object list of elements callback function that returning true for the key -
indKeyByValuel(obj, value)Description:search for a key on an object where its value matches a given value parameters: obj: object with list of keys and valuse value: the item that should be found -
flatten(nested)Description:function that takes in an array containing elements including nested arrays of elements, and return a "flattened" version of the array. parameters: nested: arrays with elements and iner arrays -
head(arr)Description:function for arrays is to retrieve the first element from the array. Parameters: arr(array): value -
tail(words)Description:function tail which returns the "tail" of an array: everything except for the first item (head) of the provided array. parameter: words(array); value -
letterPositions(sentence)Description:return all the indices (zero-based positions) in the string where each character is found parameters: sentens (string) a text
map(array, callback)
Description:creates a new array populated with the results of calling a provided function
parameters:
array an array to map
callback a callback function
middle(array)
Description:function that takes in an array and return the middle-most element(s) of the given arrayy
parametes;
array array with elements
takeUntil(array, callback)
Description:slice of the array with elements taken from the beginning." It should keep going until the callback/predicate returns a truthy value.
array The array to work with
callback a callback function
without(source, itemsToRemove)
Description:function that returns a new array subset of a given array, removing unwanted elements
parameters:
source: arrays with list of elements
itemsToRemove; array with a elements that need be removed from the source