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 @irinagm/lotide

Require it:

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

Call it:

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

Documentation

The following functions are currently implemented:

• assertArraysEqual(actual, expected): Function that recives two arrays as arguments and prints an appropriate message after comparing them.
• assertEqual(actual, expected): Function that takes in 2 values and returns 'Assertion Passed' if they are equal and 'Assertion Failed' otherwise.
• assertObjectsEqual(actual, expected): Function that takes in two Objects. Returns 'Assertion Passed' if both objects have identical keys with identical values. Otherwise returns 'Assertion Failed'.
• countLetters(string): Function that takes in a sentence and returns a count of each of the letters in the sentence.
• countOnly(allItems, itemsToCount): Function that takes in a collection of items and returns a specific subset of those items.
• eqArrays(array1, array2): Function that takes in 2 arrays and returns true if the arrays are equal and false otherwise.
• eqObjects(object1, object2): Function that takes in 2 objects and return true if they are equal and false otherwise.
• findKey(object, callback): Function that takes in an object and callback and returns the first key that meets the criteria specified in callback.
• findKeyByValue(object, value): Function that takes in an object and a value and returns the first key that corresponds to that value.
• flatten(array): Function that takes in an array that contains elements including nested array of elements and returns a flattened version of the array.
• head(array): Function that takes in an array and returns the first element in the array.
• letterPositions(string): Function that takes in a string and returns all indices of letter positions in the string.
• map(array, callback): Function that takes in an array and a callback and returns a new array based on the results of the callback on each item in the array.
• middle(array): Function that takes in an array and returns middle most element of the array.
• tail(array): Function that takes in an array and returns everything except the first element of the array.
• takeUntil(array, callback): Function that takes in an array and callback and returns a slice of the array based on the criteria specified in the callback.
• without(sourceArray, itemsToRemoveArray): Function that takes in a source array and an itemsToRemove arrays and returns only the items from the source array that are not in the itemsToRemove array.