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 @lanzyy/lotide

Require it:

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

Call it:

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

Documentation

The following functions are currently implemented:

• assertEqual: Assertion that two values (primitives) are equal.

• head: A commonly used function for arrays is to retrieve the first element from the array.

• tail: Return the "tail" of an array, everything except for the first item (head).

• eqArrays: Compares Arrays for a perfect match.

• assertArrayEquals: Assertion that two arrays are equal.

• without: Removes an item in an array.

• flatten: flattens multi-dimensional arrays.

• middle: Return an array with only the middle element(s) of the provided array.

• countOnly: Take in a collection of items and return counts for a specific subset of those items.

• countLetters: Take in a sentence (as a string) and then return a count of each of the letters in that sentence.

• letterPositions: Return all the indices (zero-based positions) in the string where each character is found.

• findKeyByValue: Help us search for a key on an object where its value matches a given value.

• eqObjects: Compares objects for a perfect match.

• assertObjectsEqual: Assertion that two objects are equal.

• map: This function will take in two arguments: An array to map and a callback function. It will return a new array based on the results of the callback function.

• takeUntil: It will take in two parameters as well: The array to work with and the callback (which Lodash calls "predicate"). The function will return a slice of the array with elements taken from the beginning.

• findKey: 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.