Luis Silva

Luis Silva

1616118036

CLOSURES en JavaScript: Qué son y cómo funcionan

Las Closures o Funciones Cierre son una de las partes más importantes sobre JavaScript y que siempre nos provoca ciertas dudas. Con este vídeo te las resuelvo en menos de 10 minutos.

Ya estás un paso más adelante en tu camino para dominar JavaScript!

#javascript

What is GEEK

Buddha Community

CLOSURES en JavaScript: Qué son y cómo funcionan

CLOSURES en JavaScript: Qué son y cómo funcionan

Las Closures o Funciones Cierre son una de las partes más importantes sobre JavaScript y que siempre nos provoca ciertas dudas. Con este vídeo te las resuelvo en menos de 10 minutos.

Ya estás un paso más adelante en tu camino para dominar JavaScript!

#javascript

Luis Silva

Luis Silva

1616118036

CLOSURES en JavaScript: Qué son y cómo funcionan

Las Closures o Funciones Cierre son una de las partes más importantes sobre JavaScript y que siempre nos provoca ciertas dudas. Con este vídeo te las resuelvo en menos de 10 minutos.

Ya estás un paso más adelante en tu camino para dominar JavaScript!

#javascript

Rahul Jangid

1622207074

What is JavaScript - Stackfindover - Blog

Who invented JavaScript, how it works, as we have given information about Programming language in our previous article ( What is PHP ), but today we will talk about what is JavaScript, why JavaScript is used The Answers to all such questions and much other information about JavaScript, you are going to get here today. Hope this information will work for you.

Who invented JavaScript?

JavaScript language was invented by Brendan Eich in 1995. JavaScript is inspired by Java Programming Language. The first name of JavaScript was Mocha which was named by Marc Andreessen, Marc Andreessen is the founder of Netscape and in the same year Mocha was renamed LiveScript, and later in December 1995, it was renamed JavaScript which is still in trend.

What is JavaScript?

JavaScript is a client-side scripting language used with HTML (Hypertext Markup Language). JavaScript is an Interpreted / Oriented language called JS in programming language JavaScript code can be run on any normal web browser. To run the code of JavaScript, we have to enable JavaScript of Web Browser. But some web browsers already have JavaScript enabled.

Today almost all websites are using it as web technology, mind is that there is maximum scope in JavaScript in the coming time, so if you want to become a programmer, then you can be very beneficial to learn JavaScript.

JavaScript Hello World Program

In JavaScript, ‘document.write‘ is used to represent a string on a browser.

<script type="text/javascript">
	document.write("Hello World!");
</script>

How to comment JavaScript code?

  • For single line comment in JavaScript we have to use // (double slashes)
  • For multiple line comments we have to use / * – – * /
<script type="text/javascript">

//single line comment

/* document.write("Hello"); */

</script>

Advantages and Disadvantages of JavaScript

#javascript #javascript code #javascript hello world #what is javascript #who invented javascript

Brad  Hintz

Brad Hintz

1598702760

A practical example of Javascript closures

ost developers today, know about closures in Javascript. Don’t be sad if you don’t, it’s not something you generally use on your every-day work (well, you may, but it’s not so common).

losures are something that many companies would like you to know before working for them, therefore, chances are they’ll ask you something related with this topic, or even more, they could make you write a practical example of it.

On this story, I’m gonna tell you about a small function I was asked to develop on an interview a while ago, that involved the use of closures for its solution.

Let’s start with the premise:

Can you write a function that will solve the following test case?

let result = sum(1)(2)(3)();

console.log(result === 6 ? 'SUCCESS' : 'ERROR');

The function we need to create will sum the values sent as a parameter and will accumulate them. Also, it will return another function for the next value to be passed on. If we don’t send any value to it, it will return the accumulated value.

It looks fairly simple at first, but let’s take a look into it:

const sum = (value) => {
  let accum = 0;

  if (value) {
    accum += value;
    const innerSum = (value) => { /*TODO*/ };
  } else {
    return accum;
  }
};
console.log(sum());
0

That’s a good start. First, we create the function called sum that will take a value as a parameter. If that value exists, we will sum the value to the accum and return a function to keep adding values (TODO).

#currying #javascript-interview #javascript #closures-functions #closure

Hire Dedicated JavaScript Developers -Hire JavaScript Developers

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