What is JQuery?

jQuery is a JS library that offers a simple way to achieve a variety of common JavaScript tasks quickly and consistently, across all major browsers and without any fallback code needed.

1. In order to use jQuery, the first thing you need to do is include the jQuery script in your page. You can see that it is included before the closing body tag.

2. Once jQuery has been added to the page, a second JavaScript file is included that uses jQuery selectors and methods to update the content of the HTML page.

JQuery doesn’t do anything you cannot achieve with pure JavaScript. It is just a JavaScript file but estimates show it has been used on over a quarter of the sites on the web, because it makes coding simpler.

LOOPING:

In plain JavaScript, if you wanted to do the same thing to several elements, you would need to write code to loop through all of the elements you selected.

CHAINING :

If you want to use more than one jQuery method on the same selection of elements, you can list several methods at a time using dot notation to separate each one, as shown below.

UPDATING ELEMENTS:

.html()

This method gives every element in the matched set the same new content. The new content may include HTML.

.text()

This method gives every element in the matched set the same new text content. Any markup would be shown as text.

.replaceWith()

This method replaces every element in a matched set with new content. It also returns the replaced elements.

.remove()

This method removes all of the elements in the matched set.

THE EVENT OBJECT:

Every event handling function receives an event object. It has methods and properties related to the event that occurred.

LOADING JQUERY FROM A CDN:

Pair programing :

How does pair programming work?

Driver and the Navigator. The Driver is the programmer who is typing and the only one whose hands are on the keyboard. Handling the “mechanics” of coding, the Driver manages the text editor, switching files, version control, and—of course writing—code. The Navigator uses their words to guide the Driver but does not provide any direct input to the computer. The Navigator thinks about the big picture, what comes next, how an algorithm might be converted in to code, while scanning for typos or bugs. The Navigator might also utilize their computer as a second screen to look up solutions and documentation, but should not be writing any code.

Why pair program?

Pair programming touches on all four skills: developers explain out loud what the code should do, listen to others’ guidance, read code that others have written, and write code themselves.

6 Reasons for Pair Programming:

1. Greater efficiency.

2. Engaged collaboration.

3. Learning from fellow students.

4. Social skills.

5. Job interview readiness.

6. Work environment readiness.

Done by : Omar Al-Zoubi GitHub