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 @jaidenpearson/lotide

Require it:

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

Call it:

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

Documentation

The following functions are currently implemented:

• assertArraysEqual(Array1, Array2): asserts whether two arrays are deeply equal to each other

• assertEqual(Actual, Expected): discerns whether the output of a function is the expected result

• assertObjectsEqual(Object1, Object2): asserts whether two objects are deeply equal.

• countLetters(String): counts how many times a letter appears in a string. Does not count spaces

• countOnly(Array, Object): Takes an array and counts the amount of times a specified name appears. Names in the object must be a key and have the value True to be counted. Names with a False value will be ignored.

• eqArrays(Array1, Array2): Same function as assertArraysEqual, only eqArrays returns a True value for deep equality between the Arrays, whereas False is returned for inequality.

• eqObjects(Object1, Object2): Same function as assertObjects Equal, only returns a True value for deep equality between the Arrays, whereas False is returned for inequality.

• findKey(Object, Callback): Accepts an object and a callback function. Returns any keys that return true from the callback function.

• findKeyByValue(Object, Value): Accepts an object and an expected value within the object. Returns the key corresponding to the input value.

• flatten(Array): Accepts an array, will eliminate all nested arrays within the parent and return all the values in a single array in the same order.

• head(Array): Accepts an array, will return the first value in the array.

• letterPositions(String): Accepts a string and indexes where each letter appears in the String. Does not count spaces. Records multiple indexes for repeat letters.

• map(Array, Callback): Accepts an Array and a Callback function. Loops through the array and returns a new array with values that have returned true from the callback function.

• middle(Array): Accepts an Array, returns the middle indexed value in the array or the two values closest to the middle.

• tail(Array): Accepts an Array, returns every value but the first index. Sworn enemy of the head function.

• takeUntil(Array, Callback): Accepts an Array and a Callback function, pushes values from array into a new array until the callback function returns true. In which case takeUntil returns the new array of values.

• without(SourceArray, RemoveArray): Accepts two arrays, any stricly matching values between the two arrays are removed and the Source array is returned.