@benfinlay/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 Ben Finlay as part of my learnings at Lighthouse Labs.

Usage

Install it:

npm install @benfinlay/lotide

Require it:

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

Call it:

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

Documentation

The following functions are currently implemented:

• head(array): returns the first entry in an array.
• tail(array): returns an array with the first entry of the input array removed.
• middle(array): returns and array with the middle values the input array.
• countLetters(string): returns a count of all letters in a string.
• countOnly(allItems, itemsToCount): takes in a collection of items and returns counts for a specific subset of those items.
• eqArrays(arr1, arr2): compares two arrays to check if they are the same.
• eqObjects(object1, object2): compares two objects to check if they are the same.
• findKey(obj, callback): takes in an object and callback. Scans the object and returns the first key for which the callback returns a truthy value.
• findKeyByValue(obj, val): searches for a corresponding value, and returns the associated object key.
• flatten(array): takes in an array with nested arrays, and returns a single array with all values.
• letterPositions(string): takes in a string and returns an object with the keys as chars, and the values as the positions of the letters in the string.
• map(array, callback): takes in an array and callback and return a new array based on the results of the callback function.
• takeUntil(array, callback): returns a slice of an array starting from array0, and stopping at when the callback value reaches a truthy position.
• without(source, itemsToRemove): takes in two arrays, and removes any of values in the source array that appear in the itemsToRemove array.