@brenonparry/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 @brenonparry/lotide

Require it:

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

Call it:

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

Documentation

The following functions are currently implemented:

• countLetters(...): Takes in a sentence (as a string) and returns a count of each of the letters in that sentence.
• eqArrays(...): Takes in two arrays as the parameters and evaluates to true if the arrays are identical, otherwise it evaluates false.
• assertEqual(...): Takes in a non-array or object value: 'actual', and compares its against 'expected' to return a boolean.
• eqObjects(...): Takes in two objects as the parameters and evaluates to true if the objects are identical, otherwise it evaluates false.
• findKey(...): Takes in an object and a callback. It scans the object and returns the first key for which the callback returns a truthy value. If no key is found, then it returns undefined.
• findKeyByValue(...): Takes in an object and the value of a desired key in the object. It will scan the values until it matched the value to the key, then return the key.
• head(...): Takes in an array and returns the first element.
• letterPositions(...): Takes in a sentance (as a string) and returns all the indices (zero-based positions) in the string where each character is found.
• tail(...): Takes in an array and returns the last element.
• middle(...): Takes in an array and returns the middle element. if the array.length is even, it will return the two most middle in a new array.
• takeUntil(...): Takes in an array and callback() and will return a "slice" of the array with elements taken from the beginning. It keeps going until the callback/predicate returns a truthy value.
• without(...): Takes in a source array and a itemsToRemove array. It returns a new array with only those elements from source that are not present in the itemsToRemove array.
• map(...): Takes in an array and callback(), it returns a new array based on the results of the callback function.
• countOnly(...): Takes in an array and an object. It will return an object containing counts of everything that the input object listed.
• assertArrayEqual(...): An asertion using eqArrays().
• assertObjectsEqual(...): An assertion using eqObjects().