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 @mogar/lotide

Require it:

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

Call it:

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

Documentation

The following functions are currently implemented:

• assertEqual(actual,expected): Compares if two values match and returns a string stating if the assertion passed or failed.
• assertArraysEqual(array1,array2): Compares if two arrays match and returns a string stating if they are equal or not.
• assertObjectEqual(actual,expected): Compares if two objects match and returns a string stating if the assertion passed or failed.
• eqArrays(array1,array2): Compares if two arrays match returns true if they do and false if they dont. Able to handle nest arrays.
• eqObjects(obj1,obj2): Compares if two objects match returns true if they do and false if they dont. Able to handle nest objects.
• countLetters(str): Takes a string and returns an object with the letters as keys and value being the number of times they had occured.
• countOnly(allItems,itemsToCount): Takes an array and object, returning a new object. The object contains all the array values that match the object and the value being the number of times they had occured.
• findKey(obj,callback): Takes an object and callback function, returning the first object key that returns true from callback.
• findKeyByValue(obj,value): Takes an object and value, returning the first object key that matches the given value.
• flatten(array): Takes an array with nested values and returns a new single nested array with nested values.
• head(array): Takes an array and returns the first value in the array.
• letterPositions(sentence): Takes a string and returns an object with the keys of the letters, and a array of all the indexes where they occured.
• map(array,callback): Takes an array and callback function, returning a new array with the return value of each element being passed through callback.
• middle(array): Takes an array and returns the value of the middle index. If array is even, it will return the two values adjacent to the middle.
• tail(array): Takes an array and returns a new array with all the values except the first element.
• takeUntil(array,callback): Takes an array and callback function, returning a new array of all the values that appeared prior to value that returns true when passed in call back.
• without(source,itemsToRemove ): Takes a source array and a array of itemstToRemove, returning a new array of all the values in source array that were not in itemsToRemove array.