Arrow-functions Questions

I have noticed an interesting issue in my react project. i have solved the issue by following the 1st approach but i wish to know the difference

I have a problem with lexical binding in javascript. this is my code: .pipe(through.obj((url, enc, done)=>{ if(!url)

<script type="text/javascript"> settimeout(alert('1'), 1000); settimeout(() => alert('a'), 1000); // second settimeout method

I am new to javascript, and i am struggling with how to change an arrow function with non-arrow function... please help, and thank you very much

I'm making a random password generator in vannila js , i'm facing a unknown problem in following code :

I am trying to setstate in an arrow function component but getting an error "setstate is not defined". i tried setting state in

I have my current ugly code to filter an array with specific requirements, is there any better ways to simplify the code by using arrow function

I am learning js, and trying to figure out: what is reason of appearing in console of [object object]? const arr =

Can you explain me why handleclick function is always new? function foo() { const handleclick = () => {

Below is code snippets that works, state- state = { name : '', age : '' }

_counterstate createstate() => _counterstate(); so i know what => does. it is an arrow function, and a

I was wondering to know if i can write a pure es6 class using arrow functions. here is my class example: class phonenumber {

I just do a coding challenge and i know how to solve it with a classic if-else statement using a foreach loop without arrow functions.

I'm new in react and i have some issue with my code. i will try to describe what i have. first i tried to create simple to do list app

If i write a react class like this: class someclass extends react.component { state = { somestate:

I am working on es6 arrow functions in react. the 'this' keyword in the arrow function displays weirdly in the chrome debugger console. 'this'

I don't understand how this can work in javascript rendermarkbutton(type, icon) { it looks like an arrow

I am running a react project using npm. after hours of research and experimenting, everywhere says i have to add the following code to my

I have a problem. i want to clean my code and put function to another file but i always get an error: getme is not a function

Const datee = () => document.write(new date()); datee; //no response, same for console.log const

I'm currently very amazed about the use cases of the new react hooks api

I came across the arrow function feature being used as class property in react component. looking online i found that it makes code more readable

So i'm practicing my javascript skills. i'm currently studying es6 and i'm trying to use arrow functions with modules but they don't seem to work

I am new to flutter and i found below sample code from google to demonstrate the declaration of a chip widget with sync* and yield:

I'm trying to read the metadata from an *.mp4 video using ffprobe and exec, then parsing its json results

I’m talking about the case when you don’t need to return anything. for example: let pos = {'x': 1, 'y': 1}; ['x',

Here, is the simple code where i'm trying to change the background color once i clicked on the button

I want to pass the 'id' and 'value' of a <button> into a function, and use it to run a piece of code. i was not

I have the following array of objects, in which some specific keys have a value which is either a string or an array. i want to get the keys with

My javascript & react level is beginner. i'm having fun with

It seems that only if i fill out the child object directly in the base function that is the only way that the getsettings function can see the

I have declared a arrow function inside react component. inside this i have logged a value but it shows error. i am new in react so please help me

I am trying to export a function in a .js file using both normal or arrow function. but i don't understand which is recommended. export

I'm a rather confused as to why some "requires" returns an error : typeerror: require is not a function at timeout._ontimeout

Learning react and trying to cheat off this

We can declare methods of component class as arrow functions, like so: class somecomponent extends react.component { somemethod

I'm trying to understand the difference between two ways of using an arrow function and setting state in a react class component. both seem to

The following is the code on react: handlechange = name => event => { console.log(name, event.target.value); }

I'm working in react and i'm currently getting the error "expected to return a value at the end of arrow function array-callback-return". i've

I am trying to understand a block of code here, which i believe is redundant code, which could be deleted but maybe i am wrong, here is the

Suppose i have an array like: const items=[{ "tasktype": "type2", "taskname": "two", "id":

In my react component, orders[i] is defined, since the component is rendered using name and amount, however, when it comes to onclick event,

I have in my component this function to post data. this works fine, but on the success message, the this context of my component is

This thread explains in detail

I have the following json object const slides = [ { title: "hello world", bullets: [ "allows us to ... write",

I don't usually write in javascript and have wrote myself into a bit of a problem. i wrote the following bit of code to interact with some online

I have a problem with the arrow function in my react project. the class looks like this: f1() { // sth... } f2 = (a)

There is an arrow function creating an array like: const myfunction = () => ["a", "b", "c"]; i want to add an

I have an array like the below. [{ id: 1, is_child_question: false, parent_question_id: null }, { id: 2,

I know vue expects data to be an function returning an object, so: data () { return {} } works, but this

In example - 1 i am getting all the values entered from the prompt box. //example - 1

I'm creating a custom validation rule using veevalidate. the offical docs uses arrow functions for the getmessage and

I'm trying to 'implement' church's encoding of lambda

I was reading about arrow functions (in typescript context). and i came across this line. arrow function is created per

Here is my code: import react from 'react'; export default class moviecard extends react.component { constructor(props) {

While searching for arrow functions i came across this

How can i convert following function to arrow function? i am using currying here function mergestring(str){ return

I am currently very confused about when should we use arrow function and when we should not. i did the search about this but still i'm not clear.

I am trying to execute some javascript with setinterval() method, below is my code if(have_access){ let clock =

Function createmathoperation(operator) { console.log(operator); //(augend, addend) => augend + addend return (value, other) => {

In a survivejs code example i encountered

I have this function getdata which will read in a list of ids from a json file. the list of ids is stored to the

Beginner here. why username is undefined in the function and how to make the function to have it as john doe and not

The following code has this warning in console: unexpected block statement surrounding arrow body; move the returned value

I just started using airbnb's eslint config - and it seems really good. i am however getting the below error, and i'm unsure of what the

Why is this piece of code giving me lint warnings? what's the workaround? any help would be appreciated. const configurestore =

Lately i've been reading 'the secrets of javascript ninja' by john resig and i've reached listing 4.10 i.e "binding a specific context to a

I am having hard time writing the below line in normal js syntax as ie doesn't support es6 javascript. updating the question. my

While reading the

Though i know arrow functions aren't intended to be a complete replacement of it, can i use an arrow function as shorthand for this syntax:

For some reason, es6 code that runs well in the current chrome or firefox cannot run in safari - for example,