@ibirn/lotide v1.0.1

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 @ibirn/lotide

Require it:

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

Call it:

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

Documentation

The following functions are currently implemented:

• head(array): returns first element of an array.
• tail(array): returns everything but the first element in a shallow copy.
• middle(array): returns either one or two elements in the middle of an array in a new array.
• assertArraysEqual(array1, array2): deeply compares two arrays and logs to console whether or not they are equal. If array element might contain an object other than another array, use assertObjectsEqual instead.
• assertEqual(x, y): compares two primitve values and logs to console whether they are true.
• assertObjectsEqual(object1, object2):deeply compares two objects and logs to console whether or not they are equal. Can contain any time of object.
• countLetters(str): returns an object with an occurence count for each character except ' '.
• countOnly(array), object): Uses true/false values attached to keys in the input object to return an occurence count for true-flagged keys in the array as an object.
• eqArrays(array1, array2): Returns a boolean value on whether or not two arrays are the same. Can do nested arrays, but if an array element may contains a different type of objects, use eqObjects instead.
• findKey(object, callback): Returns the key in the input object with the value of the callback function.
• findKeyByValue(object, value): Returns first key in the input object matching the given value.
• flatten(array): reduces nested arrays into a single level copy.
• joinList(array): nicely formats single-level arrays into strings.
• letterPositions(string): returns an object containing the indices of all letters in the given string.
• map(array, callback): performs callback function on each element of given array.
• takeUntil(array, callback): returns a new array of all elements in given array until element is equal to the return of the callback function provided.
• without(array1, array2): removes elements of array2 from array1 and returns in a new array.