@jeremydutton/lotide v1.0.1

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 @jeremydutton/lotide

Require it:

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

Call it:

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

Documentation

The following functions are currently implemented:

• assertEqual(actual, expected): assert function to test function behaviour
• eqArrays(array1, array2): takes in two arrays and compares them for equality, returning boolean value
• assertArraysEqual(array1, array2): takes in two arrays, compares them for equality, and console logs the result as a boolean value
• without(sourceArray, removalArray): returns a subset of a given array, removing unwanted elements.
• flatten(arrayToFlatten): accepts a two dimensional array and "flattens" to single dimension array
• middle(array): accepts an array and returns it's middle element, as another array
• head(array): retrieves the first element from the array
• tail(array): returns every element except the first element, of an array
• countOnly(allItems, itemsToCount): takes in a collection of items (an object) and return counts for a specific subset of those items
• countLetters(sentence): takesin a string, counts the number of instances of each letter, and returns the count of each letter as a key-value pair in an object
• letterPositions(sentence): returns all the indices (zero-based positions) in the string where each character is found. Return type is string
• findKeyByValue(object, value): takes in a object and value. Scans the object and returns the first key that has that value.
• eqObjects(object1, object2)): compares two objects and returns boolean value
• assertObjectsEqual: compares two objects and prints a boolean value to the console
• map(array, callBack): takes in an array to map and a callback function. Returns new array based on the callback function
• takeUntil(array, callback): takes an array and a callback. It will return a slice of the array with elements taken from the beginning. It will keep going until the callback/predicate returns a truthy value.
• findKey(object, callback): takes in an array and a callback