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 @aflotten/lotide

Require it:

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

Call it:

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

Documentation

The following functions are currently implemented:

• eqArrays: A function that returns true or false depending on whether two given arrays are identical or not.
• eqObjects: A function that returns true or false depending on whether two given objects are identical or not.
• assertArraysEqual: An assertion function to print out a success or fail message if two arrays are equal or not (requires eqArrays function).
• assertEqual: An assertion function to print out a success or fail message if two given parameters are identical (no type coercion).
• assertEqualObjects: An assertion function to print out a success or fail message if two given objects are identical (requires eqObjects function)
• countLetters: A function that takes in a string as a parameter an emits an object containing each character and how many times they appeared in the string.
• countOnly: Similar to countLetters, this function takes in two paramters of 'all items' and 'itemsToCount' to return how many times the 'itemsToCount' appears in 'all items'.
• findKey: A function that takes in an object and a callback function. If the callback function is true at a given key of the object, it will return that key.
• findKeyByValue: A function that takes in an object and a given value, where if the value matches a key in the object, it will return that key.
• flatten: A function that takes in an array with nested arrays and will return one array with all values on the same level (Up to one level of nested arrays).
• head: A function that returns the first value in an array.
• letterPositions: A function that takes in a string and returns the charcters within that string and at what idex they appear at in the string.
• map: A function that takes in an array and a callback function. It will modify the array with the callback function and then return the new array.
• middle: A function that will return the value in an array at the very middle index. For even length arrays it will return the the middle two values.
• tail: A function that will return all the values of the array with the exemption of the very first value.
• takeUntil: A function that takes in an array and a callback function. The function will push the items of the array to a new one until the callback function executes and it will terminate.
• without: A function that takes in a source array and an itemToRemove argument. It will return a new array without the itemToRemove value.