@jdhal056/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 @jdhal056/lotide

Require it:

const _ = require('@jdhal056/lotide');

Call it:

const results = _.tail([1, 2, 3]) // => [2, 3] const results = _.head([1, 2, 3]) // => [1] const results = _.middle([1, 2, 3]) // => [2] const results = _.without([1, 2, 3], [2]) // => [1, 3] const results = _.takeUntil([1, 2, 5, 7 2, -1, 2, 4, 5], x => x < 0) // => [1, 2, 5, 7, 2] const results = _.map(["ground", "control", "to", "major", "tom"], x => word[0]) // => ["g","c","t","m","t"] const results = _.letterPositions("hello").l // => [2, 3] const results = _.flatten([1, [2], [3, 4], 5]) // => [1, 2, 3, 4, 5] const results = _.findKeyByValue({sci_fi: "The Expanse", comedy: "Brooklyn Nine-Nine", drama: "The Wire"}, "The Wire") // => "drama" const results = _.findKey({"Blue Hill": { stars: 1 }, "Akaleri": { stars: 3 }, "noma": { stars: 2 }, "elBulli": { stars: 3 }, "Ora": { stars: 2 }, "Akelarre": { stars: 3 }}, x => x.stars === 2) // => "noma" const results = _.eqObjects({a: "1", b: "2"}, {a: "1", b: "2"}) // => true const results = _.eqArrays([1, 2, 3], [1, 2, 3]) // => true const results = _.countOnly(["Karl", "Salima", "Agouhanna", "Fang", "Kavith", "Jason", "Salima", "Fang", "Joe"], {"Jason": true, "Karima": true, "Fang": true}) // => {Fang: 2, Jason: 1} const results = _.countLetters("the Octopus is purple") // => {t: 2, h: 1, e: 2, O: 1, c: 1, o: 1, p: 3, u: 2, s: 2, i: 1, r: 1, l: 1}

Documentation

The following functions are currently implemented:

• tail(array): returns the array without the first element
• head(array): returns the array with only the first element
• middle(array): returns the middle element of an array (middle 2 if even number of elements)
• without(items, unwantedItems): returns an array of items after removing unwanted items
• takeUntil(array, callback): returns an array with all elements until the callback condition is met
• map(array, callback): returns an array after calling the callback on each element
• letterPositions(sentence): returns an object with the index position of the specific character
• flatten(array): returns a flattened array(not nested) when given a nested array
• findKeyByValue(object, value): returns the key that holds the specified value
• findKey(object, callback): returns the specified key after calling the callback function
• eqObjects(object1, object2): compares two objects
• eqArrays(array1, array2): compares two arrays
• countOnly(allItems, itemsToCount): returns an object with the count of the given items to count within an object
• countLetters(string): returns an object with the count of all letters in a string