@william-li/lotide v1.0.2

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 william-li/lotide

Require it:

const _ = require('william-li/lotide');

Call it:

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

Documentation

The following functions are currently implemented:

• head(array): simpler array-handling functions to retrieve the first element from the array.
• tail(array): simpler array-handling functions to retrieve every element except the head (first element) of the array.
• without(array): return a subset of a given array, removing unwanted elements.
• flatten(array): take in an array containing elements including nested arrays of elements, and return a "flattened" version of the array.
• middle(array): take in an array and return the middle-most element(s) of the given array.
• countOnly(array, object): countOnly will be given an array and an object. It will return an object containing counts of everything that the input object listed.
• countLetters(string): take in a sentence (as a string) and then return a count of each of the letters in that sentence.
• letterPositions(string): return all the indices (zero-based positions) in the string where each character is found.
• findKeyByValue(object, value): takes in an object and a value. It should scan the object and return the first key which contains the given value. If no key with that given value is found, then it should return undefined.
• map(array, callback): takes in an array and a callback function. It would return a new array which contains the result of all elements processed by the callback function.
• takeUntil(array, callback): return a "slice of the array with elements taken from the beginning." It should keep going until the callback/predicate returns a truthy value.
• findKey(object, callback): takes in an object and a callback. It should scan the object and return the first key for which the callback returns a truthy value. If no key is found, then it should return undefined.