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 @vyshudoulagar/lotide

Require it:

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

Call it:

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

Documentation

The following functions are currently implemented:

• head(array) : takes array as an argument, returns first element of given array
• tail(array) : takes array as an argument, returns all elements except first element of given array
• middle(array) : takes array as an argument, returns middle element/elements of given array
• assertArraysEqual(actual, expected): takes 2 arrays as arguments, asserts if the given arrays are equal
• assertEqual(actual, expected): takes 2 primitive values as arguments, asserts if the given values are equal
• assertObjectsEqual(actual, expected): takes 2 objects as arguments, asserts if the given objects are equal
• countLetters(sentence): takes sentence as an argument, returns an object which tells the number of occurences of each letter in a given sentence
• countOnly(allItems, itemsToCount): takes array and object as arguments, returns an object which tells the number of occurences of elements given in the object(itemsToCount) in the given array(allItems)
• eqArrays(actual, expected): takes 2 arrays as arguments, checks if the given arrays are equal
• eqObjects(actual, expected): takes 2 objects as arguments, checks if the given two objects are equal
• findKey(object, callback): takes object and function as arguments, returns the key of object for which the callback function is true
• findKeyByValue(object, value): takes object and value as arguments, return the key of object if the value of that key is equal the given value
• flatten(array): takes in an array containing elements including nested arrays of elements, and returns a "flattened" version of the array
• letterPositions(sentence): returns all the indices (zero-based positions) in the string where each character is found
• map(array, callback): takes in two arguments:An array to map, A callback function, it returns a new array based on the results of the callback function.
• takeUntil(array, callback): takes array to work with and a callback as arguments, returns a "slice of the array with elements taken from the beginning." It keeps going until the callback/predicate returns a truthy value.
• without(array1, array2): takes in 2 arrays, main array and an array of unwanted elements, returns a subset of a given array, removing unwanted elements