I have gotten the next bunch of code. const func: ( newState: { newState: number }) => void = ({ newState: newState }) => { console.log(newState); } For me, particularly interesting is the ({ newState: newState }) how is it work? Why can I write newState: newState in this situation, and no compilation errors? >Solution… Read More Which type of value in the object as parameter of function. Why do not have the compilation errors?

Why arrow function fails to identify this pointer in the following case. I know that regular functions have their own execution scope and this but I could not identify why following failed. In the arrow function case, this is undefined. If someone can shed light, it would be great. Thank you! PS: This code is… Read More Why extending property of existing object with arrow function fails

Hello everyone can anyone help me to convert this code by using normal function without using the arrow function.Your kind help will help me alot to accomplish my project const arrows = document.querySelectorAll(".arrow"); const movieLists = document.querySelectorAll(".movie-list"); arrows.forEach((arrow, i) => { const itemNumber = movieLists[i].querySelectorAll("img").length; let clickCounter = 0; arrow.addEventListener("click", () => { const ratio… Read More How to change this code to normal function?

Right now, my code is working as intended, but I wanted to know if there was a shorter way of writing this. I’m using speaktts in React which consists of a const of what I want the text to be spoken through the text to speech. I have a function to handleClick and then the… Read More Is it possible to write this a shorter way in React using onClick?

i just created an object with an arrow function : const user={ fName:"0xN1nja", about:()=>{ return this.fName; } } now, when i call that arrow function with .call() method, it returns undefined : a=user.about.call(user); console.log(a); >>> undefined But when i replaced that arrow function with a normal function expression, it returns the value const user={ fName:"0xN1nja",… Read More Arrow Function Created In An Object Returns undefined When Called Using .call() Method

I have a byte, and I want to increment bits left to the first bit by 1 (the context is a small Conway’s Game of Life). Example: 11 is 0000 1011: I want to increment 101 5 + 1 = 6 is 110 reset the first bit to initial state the byte is now 0000… Read More Bitwise operation and arrow function return statement

const datee = () => document.write(new Date()); datee; //no response, same for console.log const datei = () => new Date(); console.log(datei); // () => new Date(); The comments above shows what they are printing if they are printing anything >Solution : You have to call the arrow functions just like a regular inline function const… Read More can someone tell me why my js code is not printing the date using the arrow function?

How can I write a function within the onclick event of a button What I want to do is something similar to this: <button onclick=”(function(){ console.log(‘some code here’) })”>My button</button> >Solution : You’ll need to invoke the function: <button onclick=”(function(){ console.log(‘click’) })()”>My button</button>

I have a React component that is declared in the arrow-function notation. This component has a child component that is supposed to change the state of the ParentComponent. How can I achieve that? And how would it look like if we passed the change of the state as a function (changeState in this case)? const… Read More Passing functions/state variables to a React Component (Arrow notation)

I need to watch a folder where i write files to. When a new file is added, i want to know which one is it, and then return it somewhere else in my application I have tried using fs.watch() and chokidar and it works. My issue, is that i can’t seem to be able to… Read More Nodejs fs.watch / fs.readFile – return added file