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 @m-wardle/lotide

Require it:

const _ = require('@m-wardle/lotide');

Call it:

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

Documentation

The following functions are currently implemented:

• head(array): Retrieves the first element of an array.
• tail(array): Retrieves every element of an array after the first.
• middle(array): Retrieves the middle number(s) of an array.
• countOnly(array, object): Given an array and an object, it will return an object containing counts of everything that the input object listed as having a value of "true" (e.g. {x: true, y: false, z: true} will return a count of the occurances of x and z in the array).
• countLetters(string): Given a string, it will return an object listing each letter that occurs within the string along with the number of occurances.
• findKey(object, callback): Takes in an object and a callback. 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(object, value): Takes in an object and a value and returns the first key which contains that value.
• flatten(array): Given an array with other arrays inside, it can flatten it into a single-level array.
• letterPositions(string): Returns all the indices in the string where each character is found.
• map(array, callback): Takes an array and a callback function and returns a new array based on the callback function.
• takeUntil(array, callback): Given an array and a callback function, it will iterate through that array, returning a slice containing each item iterated through until the callback function returns true.
• without(array, exclusions): Given an array, and an array of exclusions, returns a subset of the initial, removing unwanted values.