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 @jessemiller/lotide

Require it:

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

Call it:

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

Documentation

The following functions are currently implemented:

• head(...): takes an array and returns the 0th element.
• tail(...): takes an array and returns all elements after the 0th.
• middle(...): takes an array and returns middle element(s).
• assertArraysEqual(...): takes two arrays and asserts if they are equal or not.
• assertEqual(...): takes two primitive values and checks if they are strictly equal.
• assertObjectsEqual(...): checks objects (shallow check) and asserts if they are equal or not.
• countLetters(...): takes a string of letters and returns the number of each letter in the string.
• countOnly(...): takes an array and an object. counts the number of elements in the array associated with true values in the passed object.
• eqArrays(...): takes 2 arrays and checks if they are strictly equal.
• findKey(...): takes an object and a callback function and returns the first property in the object which meets the callback function criteria.
• findKeyByValue(...): takes an object and a value as an input and returns the first key in the object with that value
• letterPositions(...): takes a string as an input and outputs an object with key value pairs of the letters and indices of the letters
• map(...):map function takes an array and a callback function as arguments. It returns a new array that contains the results of calling the callback function on each element of the original array.
• takeUntil(...): takes an array as an arguement and a callback function. returns an array of all elements up UNIl (non-inclusive) the callback functions emement is encountered in the array.
• without(...): takes in source array and array of items to remove.
• eqObjects(...): checks if two objects are equal.