@rengebre/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 me as part of my learnings at Lighthouse Labs.

Usage

Install it:

npm install @rengebre/lotide

Require it:

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

Call it:

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

Documentation

The following functions are currently implemented:

• countLetters(string): Count the number of occurences of all characters in a string. returns an object with char: count pairs.
• countOnly(allItems, itemsToCount): given an array (allItems), count the number of times the items in the object itemsTocount occur.
• eqArrays(array1, array2): deeply compares whether two arrays are equal.
• eqObjects(obj1, obj2): deeply compares whether two objects are equal.
• findKeys(obj, callback): return the key for the first value defined by the callback function returning true.
• finKeyByValue(object, value): Find the first key whos value matches the value provided.
• flatten(array): flatten the provided array, only one layer deep.
• flattenDeep(array): deeply flattens the provided array.
• head(array): return the head of the array.
• tail(array): return the tail of the array.
• middle(array): return and array of the middle most value in an array. returns a 2 element array if even number of items in array.
• letterPositions(string): returns an object with an array of the indeces of every character in the provided string.
• map(array, callback): maps the elements of the array to a new array for all values in the array in which the callback returns true.
• takeUntil(array, callback): returns a slice of the array, containing up to, but not including, the first value in the array in which the callback returns true.
• without(array, itemsToRemove): returns a new array with all the items in 'itemToRemove' removed.
• assertEqual(value1, value2): asserts whether 2 values are equal
• assertArraysEqual(array1, array2): deeply asserts whether 2 arrays are equal.
• assertObjectsEqual(obj1, obj2): deeply asserts whether two objects are equal.