@dbeattie/lotide. v0.9.0

Lotide

A bad mini clone of the Lodash library.

Purpose

BEWARE: This library was published for learning purposes. Poorly written and incomplete at the time of publication. It is not intended for use in production-grade software.

This project was created and published by me as part of my practice at Lighthouse Labs.

Usage

Install it:

npm install @dbeattie/lotide

Require it:

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

Call it:

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

Documentation

The following functions are currently implemented:

• assertEqual(x,y): Logs message to show whether 2 primary objects match.
• head(array): returns the front element of the array.
• tail(array): returns a new array without the (head) first index value of the original array.
• eqArrays(arr1,arr2): compare 2 arrays and return true if they’re equal. This currently does not work on nested arrays but might be implented at a later date.
• assertArraysEqual(arr1, arr2): Logs a message to show if 2 arrays match.
• middle(array): returns a new array with the middle index element value/s of the original array if it's more than 2 elements.
• without(source, itemsToRemove): returns a source array without the specified items from itemsToRemove.
• flatten(array): Takes potentially nested arrays and flattens it into a single array with no nesting.

The following functions are still waiting to be implemented:

• eqObject(object1, object2): compares tow objects and returns a bollean if the values are the same and the number of keys are the same. This currently does not work on nested objects- to be implented at a later date.
• countLetters(string): returns the count of each letter of the string with an Object format.
• countOnly(allItems, itemsToCount): returns the number of times a value (itemsToCount) appears in an array.
• assertObjectsEqual(Obj1, Obj2): Logs a message to show whether 2 objects match.
• findKey(obj1, callback): returns the first key which matches the value which is given by the callback.
• findKeyByValue(object, value): returns the first key which matches the value. (This is with no callback function).
• letterPositions(sentence): returns an object that contains the letters (key) and index positions (value) of the sentence.
• map(array, callback): takes in two arguments 1) array to map and 2) callback function (when predicate is met) should return the altered array.
• takeUntil(array, callback): takes a slice of an array with index values taken from the beginning until callback/predicate returns a truthy value.