Willie  Beier

Willie Beier

1595341680

5 Differences Between Arrow and Regular Functions

In JavaScript, you can define functions in many ways.

The first, usual way, is by using the function keyword:

// Function declaration
function greet(who) {
  return `Hello, ${who}!`;
}
// Function expression
const greet = function(who) {
  return `Hello, ${who}`;
}

The function declaration and function expression I’m going to reference as regular function.

The second way, available starting ES2015, is the arrow function syntax:

const greet = (who) => {
  return `Hello, ${who}!`;
}

While both the regular and arrow syntaxes define functions, when would you choose one instead of another? That’s a good question.

In this post, I’m going to show the main differences between the two, so you could choose the right syntax for your needs.

1. this value

1.1 Regular function

Inside of a regular JavaScript function, this value (aka the execution context) is dynamic.

The dynamic context means that the value of this depends on how the function is invoked. In JavaScript, there are 4 ways you can invoke a regular function.

During a simple invocation the value of this equals to the global object (or undefined if the function runs in strict mode):

function myFunction() {
  console.log(this);
}

// Simple invocation
myFunction(); // logs global object (window)

During a method invocation the value of this is the object owning the method:

const myObject = {
  method() {
    console.log(this);
  }
};
// Method invocation
myObject.method(); // logs myObject

#javascript #function #arrow function

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5 Differences Between Arrow and Regular Functions
Vincent Lab

Vincent Lab

1605017502

The Difference Between Regular Functions and Arrow Functions in JavaScript

Other then the syntactical differences. The main difference is the way the this keyword behaves? In an arrow function, the this keyword remains the same throughout the life-cycle of the function and is always bound to the value of this in the closest non-arrow parent function. Arrow functions can never be constructor functions so they can never be invoked with the new keyword. And they can never have duplicate named parameters like a regular function not using strict mode.

Here are a few code examples to show you some of the differences
this.name = "Bob";

const person = {
name: “Jon”,

<span style="color: #008000">// Regular function</span>
func1: <span style="color: #0000ff">function</span> () {
    console.log(<span style="color: #0000ff">this</span>);
},

<span style="color: #008000">// Arrow function</span>
func2: () =&gt; {
    console.log(<span style="color: #0000ff">this</span>);
}

}

person.func1(); // Call the Regular function
// Output: {name:“Jon”, func1:[Function: func1], func2:[Function: func2]}

person.func2(); // Call the Arrow function
// Output: {name:“Bob”}

The new keyword with an arrow function
const person = (name) => console.log("Your name is " + name);
const bob = new person("Bob");
// Uncaught TypeError: person is not a constructor

If you want to see a visual presentation on the differences, then you can see the video below:

#arrow functions #javascript #regular functions #arrow functions vs normal functions #difference between functions and arrow functions

Willie  Beier

Willie Beier

1595341680

5 Differences Between Arrow and Regular Functions

In JavaScript, you can define functions in many ways.

The first, usual way, is by using the function keyword:

// Function declaration
function greet(who) {
  return `Hello, ${who}!`;
}
// Function expression
const greet = function(who) {
  return `Hello, ${who}`;
}

The function declaration and function expression I’m going to reference as regular function.

The second way, available starting ES2015, is the arrow function syntax:

const greet = (who) => {
  return `Hello, ${who}!`;
}

While both the regular and arrow syntaxes define functions, when would you choose one instead of another? That’s a good question.

In this post, I’m going to show the main differences between the two, so you could choose the right syntax for your needs.

1. this value

1.1 Regular function

Inside of a regular JavaScript function, this value (aka the execution context) is dynamic.

The dynamic context means that the value of this depends on how the function is invoked. In JavaScript, there are 4 ways you can invoke a regular function.

During a simple invocation the value of this equals to the global object (or undefined if the function runs in strict mode):

function myFunction() {
  console.log(this);
}

// Simple invocation
myFunction(); // logs global object (window)

During a method invocation the value of this is the object owning the method:

const myObject = {
  method() {
    console.log(this);
  }
};
// Method invocation
myObject.method(); // logs myObject

#javascript #function #arrow function

Kriza Educa

Kriza Educa

1599553645

JavaScript Tutorial - Understanding Arrow Functions in 5 Easy Steps

The usual way to define JavaScript functions is using the function declaration or function expression:

// Function declaration
function greet(who) {
  return `Hello, ${who}!`;
}

// Function expression
const greetExpression = function(who) {
  return `Hello, ${who}!`;
};

But functions can be further improved. Making the syntax shorter (useful for writing short callbacks) and ease the resolving of this created a new type of functions named arrow functions.

#javascript #arrow function #function

Ethen Ellen

1619519725

Immediate $olution to Fix AOL Blerk Error Code 5 with easy instructions

This is image title

AOL Email is one of the leading web email services. It has a number of features who access easily at any place. Through this, you can easily share messages, documents or files, etc.AOL Blerk Error is not a big issue. It is a temporary error and it occurs when there is an issue in loading messages from the AOL server. If your mind is stuck, How to Resolve or Fix AOL Blerk Error Code 5? Here, In this article, we mentioned troubleshooting steps to fix AOL Blerk Error Code 5.

What are the causes of AOL Blerk Error Code 5?

AOL mail usually presents an AOL Blerk Error 5 after the AOL connection details have been entered. meaning. Your password and your username. This error is usually found in words! Or 'BLERK! Error 5 Authentication problem, 'Your sign-in has been received.

Some of the reasons for the error are as follows:
• Internet browser configuration problem

• Saved erroneous bookmark addresses

• browser cache or cookie

• An AOL Desktop Gold technical error.
How to Fix AOL Mail Blerk Error 5 in a Simple Way

This type of error is mostly due to your browser settings or the use of outdated, obsolete software. Users should remember that the steps to solve problems vary, depending on the browser you are using. Here are the steps to fix the mistake, check your browser and follow the steps.

Internet Explorer: Make sure you use the most recent web browser version. Open a new window and follow the “Tools> Web Options> Security> Internet Zone” thread. Activate ‘Safeguard Mode’ and follow the steps to include AOL Mail in the list of assured websites. Start the browser again to save changes and run Internet Explorer without additional information.
Firefox Mozilla: Open a new Firefox window and press Menu. To start the browser in safe mode, disable the add-on and choose the option to restart Firefox. You can see two options in the dialog box. Use the “Start in Safe Mode” option to disable all themes and extensions. The browser also turns off the hardware speed and resets the toolbar. You should be able to execute AOL mail when this happens.

Google Chrome: Update to the latest version of Chrome. Open the browser and go to the Advanced Options section. Go to ‘Security and Privacy’ and close the appropriate add-ons. Once the browsing history is deleted, the password, cookies saved and the cache will be cleared. Restart your system and try to log in to your AOL account with a new window.

Safari: Some pop-up windows block AOL mail when it comes to Safari and causes authentication issues. To fix the error, use Safari Security Preferences to enable the pop-up window and disable the security warning.

If you see, even when you change the required browser settings, the black error will not disappear, you can consult a skilled professional and see all the AOL email customer support numbers.

Get Connect to Fix Blerk Error Even After Clearing Cache & Cookies?
Somehow you can contact AOL technical support directly and get immediate help if you still get the error. Call +1(888)857-5157 to receive assistance from the AOL technical support team.

Source: https://email-expert247.blogspot.com/2021/04/immediate-olution-to-fix-aol-blerk.html “How to Resolve or Fix AOL Blerk Error Code 5”)**? Here, In this article, we mentioned troubleshooting steps to fix AOL Blerk Error Code 5.

What are the causes of AOL Blerk Error Code 5?

AOL mail usually presents an AOL Blerk Error 5 after the AOL connection details have been entered. meaning. Your password and your username. This error is usually found in words! Or 'BLERK! Error 5 Authentication problem, 'Your sign-in has been received.

Some of the reasons for the error are as follows:
• Internet browser configuration problem

• Saved erroneous bookmark addresses

• browser cache or cookie

• An AOL Desktop Gold technical error.
How to Fix AOL Mail Blerk Error 5 in a Simple Way

This type of error is mostly due to your browser settings or the use of outdated, obsolete software. Users should remember that the steps to solve problems vary, depending on the browser you are using. Here are the steps to fix the mistake, check your browser and follow the steps.

  1. Internet Explorer: Make sure you use the most recent web browser version. Open a new window and follow the “Tools> Web Options> Security> Internet Zone” thread. Activate ‘Safeguard Mode’ and follow the steps to include AOL Mail in the list of assured websites. Start the browser again to save changes and run Internet Explorer without additional information.

  2. Firefox Mozilla: Open a new Firefox window and press Menu. To start the browser in safe mode, disable the add-on and choose the option to restart Firefox. You can see two options in the dialog box. Use the “Start in Safe Mode” option to disable all themes and extensions. The browser also turns off the hardware speed and resets the toolbar. You should be able to execute AOL mail when this happens.

  3. Google Chrome: Update to the latest version of Chrome. Open the browser and go to the Advanced Options section. Go to ‘Security and Privacy’ and close the appropriate add-ons. Once the browsing history is deleted, the password, cookies saved and the cache will be cleared. Restart your system and try to log in to your AOL account with a new window.

  4. Safari: Some pop-up windows block AOL mail when it comes to Safari and causes authentication issues. To fix the error, use Safari Security Preferences to enable the pop-up window and disable the security warning.

If you see, even when you change the required browser settings, the black error will not disappear, you can consult a skilled professional and see all the AOL email customer support numbers.

Get Connect to Fix Blerk Error Even After Clearing Cache & Cookies?

Somehow you can contact AOL technical support directly and get immediate help if you still get the error. Call +1(888)857-5157 to receive assistance from the AOL technical support team.

Source: https://email-expert247.blogspot.com/2021/04/immediate-olution-to-fix-aol-blerk.html

#aol blerk error code 5 #aol blerk error 5 #aol mail blerk error code 5 #aol mail blerk error 5 #aol error code 5 #aol error 5

How are arrow functions different than regular functions?

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How are arrow functions different than regular functions?

#function