@rhyswood/lotide v1.0.0

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 @rhyswood/lotide

Require it:

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

Call it:

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

Documentation

The following functions are currently implemented:

• assertArrayEqual(arr1, arr2): Takes in two arrays and compares whether they are the same.
• assertEqual(actual, expected): Compares whether an output is what is expected.
• assertObjectsEqual(actual, expected): Compares whether an object is equal to an expected object.
• countLetters(sentence): takes a sentence (as a string) and returns a count of each of the letters in that sentence.
• countOnly(allItems, itemsToCount): Takes an array of strings and returns counts for a specified subset.
• eqArrays(arr1, arr2): Takes in two arrays and returns true or false, based on a perfect match.
• eqObjects(object1, object2): Takes in two objects and returns true or false, based on a perfect match.
• findKey(obj, cb): Scans an object and returns the first key for which the callback returns a truthy value.
• findKeyValue(obj, value): Scans an object and returns the first key which contains the given value.
• flatten(array): Given an array with other arrays inside, it will flatten it into a single-level array.
• head(array): Returns the first element of an array.
• letterPositions(sentence): Returns all the indices (zero-based positions) in the string where each character is found.
• map(arr, cb): Applies the callback function to each element in the given array and returns a new array based on the results of the callback function.
• middle(array): Returns an array with only the middle element(s) of the provided array. With an even number of elements, an array containing the two elements in the middle is returned.
• tail(array): Returns an array without the first element of the given array.
• takeUntil(array, cb): Returns a slice of the array with elements taken from the beginning. It goes until the callback/predicate returns a truthy value.
• without(source, itemsToRemove): Return a new array with only those elements from source that are not present in the itemsToRemove array.