novonimo

import service from "./service.json";

function sendAvailableArea() {
        const headers = {
            'x-api-key': process.env.REACT_APP_MAP_IR_ACCESS_TOKEN,
            // 'Content-Type': 'multipart/form-data'
        };

        const formData = new FormData();
        // 

novonimo

case VOTE_COMMENT_SUCCESS:
      return {
        ...state,
        comments: state.comments.map(comment =>
          comment.id === action.id
            ? {
                ...comment,
                cached_votes_up: action.data.vote_up,
                cached_votes_down: action.data.vote_down,
              }

novonimo

/*
use this memoiziation function with immutable js and see the 
beautifulness of Js 
calculate one time and use it every where
*/

function memoize(fn) {
	let prevArg;
	let prevResult;
	return function (arg) {

novonimo

console.log("%c Hello my name is nima", "color: orange; font-weight: bold;");

const foo = {name: "nima", age: 30};
const bar = {name: "sina", age: 28};
const baz = {name: "ahmad", age: 58};

console.table([foo, bar, baz])

console.time("looper")

novonimo

function makeReques(location) {
	return new Promise((resolve, reject) => {
		console.log(`Making requrest to ${location}`)
		if (location === "Google") {
			resolve("Google says hi")
		} else {
			reject("We can only talk to Google")
		}
	})
}

novonimo

async function fetchAvatarUrl(userId) {
	const response = await fetch(`https://catappapi.herokuapp.com/users/${userId}`)
	const user = await response.json();
	
	return Promise.all(user.cats.map(async (catId) => {
		const response = await fetch(`https://catappapi.herokuapp.com/cats/${catId}`)
		const catData = await response.json()
		return catData.imageUrl
	}))
}

novonimo

const listOfNumbers = [4, 5, 8, 1, 0, 2, 7, 3]

const sortedList = listOfNumbers.sort((n1, n2) => {
	if (n1 > n2) {
		return 1;
	} else {
		return -1;
	}
})

novonimo

/**
* Stopwatch onject will used for count time between start and stop time
* there are thre method on it: start, stop, reset
* and there are one property "duration"
* Implement constructor function for create object
*/
function Stopwatch () {
	let duration = 0;
	let intervalId = null;
	let isRunning = false

novonimo

function* myGenerator () {
	yield 1;
	yield 2;
	return 3;
};

const myIterator = myGenerator();

console.log(myIterator.next());
console.log("************************");

novonimo

/*
increase function will use number but it copy new number for use it
number is a Primitive type so ther are independent and will not change
*/
let number = 10;

function increase (param) {
	param++;
	console.log("param value is: ", param);
};