Abigail  Cassin

Abigail Cassin

1594254111

The Art of JavaScript Event Delegation

JavaScript events are the catalysts behind most web functionality. Interacting with literally any website means firing away a ton of events. Have you ever thought about how these events get assigned? Are developers just tirelessly adding event functionality to every single element? What about dynamically created content, how do events get added to that? Well, there are a few different approaches to address these questions.

Nested Event Listeners

One approach is to assign an event listener every single time an element is created.

For our example code we will be creating buttons and adding event listeners to them. **Our goal is to change the colors of individual buttons on click. **Our starter HTML is just this:

<ul id="button-container">

</ul>

In our JavaScript file, we will be selecting the container, adding buttons to it by iterating over an array of colors, and appending each one to the container. This is arbitrary and just intended to mimic creating elements dynamically based on incoming data.

#event-delegation #javascript #javascript-events

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The Art of JavaScript Event Delegation
Abigail  Cassin

Abigail Cassin

1594254111

The Art of JavaScript Event Delegation

JavaScript events are the catalysts behind most web functionality. Interacting with literally any website means firing away a ton of events. Have you ever thought about how these events get assigned? Are developers just tirelessly adding event functionality to every single element? What about dynamically created content, how do events get added to that? Well, there are a few different approaches to address these questions.

Nested Event Listeners

One approach is to assign an event listener every single time an element is created.

For our example code we will be creating buttons and adding event listeners to them. **Our goal is to change the colors of individual buttons on click. **Our starter HTML is just this:

<ul id="button-container">

</ul>

In our JavaScript file, we will be selecting the container, adding buttons to it by iterating over an array of colors, and appending each one to the container. This is arbitrary and just intended to mimic creating elements dynamically based on incoming data.

#event-delegation #javascript #javascript-events

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

Peyton  Ullrich

Peyton Ullrich

1626016680

Easiest Series For Learning Javascript - Javascript Events - Video 15

Read more about javascript events here -https://www.w3schools.com/js/js_events.asp

#javascript #learning javascript #javascript events

studio52 dubai

studio52 dubai

1621850716

7 Tips for a Successful Live Event Coverage - Studio 52

Live events have been a growing trend in the events industry this past year, offering many businesses a much-needed lifeline. Read on for our simple tips to planning your virtual event

#event coverage services #event photography #event video production #event videography #event coverage services #event photography

Hire Dedicated JavaScript Developers -Hire JavaScript Developers

It is said that a digital resource a business has must be interactive in nature, so the website or the business app should be interactive. How do you make the app interactive? With the use of JavaScript.

Does your business need an interactive website or app?

Hire Dedicated JavaScript Developer from WebClues Infotech as the developer we offer is highly skilled and expert in what they do. Our developers are collaborative in nature and work with complete transparency with the customers.

The technology used to develop the overall app by the developers from WebClues Infotech is at par with the latest available technology.

Get your business app with JavaScript

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#hire dedicated javascript developers #hire javascript developers #top javascript developers for hire #hire javascript developer #hire a freelancer for javascript developer #hire the best javascript developers