Advanced jQuery: Two Common jQuery Effects You Should Know

jQuery can do some animation to make some good effects to interactive with pages. There are two broad categories of effects: fading and sliding.

fadeOut() and fadeIn()

It basically fades an element out or in, and you can provide a duration if you want it to be slow or fast.

I start to create a simple HTML page which include three divs and one button. I also add some style for these divs to make effect later.

The page has three boxes and one click button. The point is that when we click the button, those three boxes will make some effect.

If we want those boxes fade out as I click the button, we can select the "button", then set "click" event type inside on(), and pass the function. In the function, we select the "div", and use set a duration in the fadeOut(). The duration is given in milliseconds. 1000 milliseconds equal to 1 second.

As I click the button, all of the boxes are hided in one second.

The fadeOut() method animates the opacity of the matched elements. Once the opacity reaches 0, the "display" property is set to "none", so the element no longer affects the layout of the page. (From jQuery.com)

If we want those hidden boxes appear again as I click the button, I can just change the "fadeOut" to "fadeIn" in the function.

slideUp() and slideDown()

It takes an element which is currently not showing and animates the height of an element.

If I want to those boxes slide up as I click the button, I only need to change the "fadeIn" or "fadeOut" to "slideUp" and keep the rest function same.

If we want those boxes show up again, we need to change "slideUp" to "slideDown", so those boxes will slide from top to bottom.

Comments

Intermediate Express.js: How To Add Styles & Partials in EJS File?

So far, we only have simple HTML tags and ejs tags in each ejs file. Every template page has no style at all. And the basic HTML header and footer are also missing. Today, I learned how to add styles and partials in ejs file. Link Style Step One: Touch a Separate CSS file I create a new directory "Style" under the "EJSDemo" directory, then I add a new CSS file "app.css" inside "Style" folder. Step Two: Add app.use(express.static()) in the app.js I add app.use(express.static("style")) in the "app.js". This will tell Express.js to serve the content of "Style" directory. Step Three: Write styles in CSS file I simple give body an orange background color and set text color to be grey. Step Four: Link to CSS file in the EJS file I just add <link> tag to link the "app.css" file on the top of the h1 tag in each ejs template. As the result, when I run the app and...

Seven Most Common jQuery Methods Last Part: ADD/REMOVE/TOGGLE CLASS()

Add, remove and toggleClass is also a very common way to manipulate style. .addClass() and .removeClass() I add two class selector in the style tag. Class one is to change text color to be green, and class two is change both text and background color. Now I refresh the page and change h1 text to green by using addClass() method: $("h1").addClass("one") . If you want to remove the style, you can change it to removeClass("one"). I do the same thing to the list. I change the list color and add a background color by adding the class two style value: $("li").addClass("two") . .toggleClass() According to jQuery, toggerClass method can add or remove one or more classes from each element in the set of matched elements, depending on either the class's presence or the value of the state argument. I only want to change the first list item color and background by writing: $("li").first().toggleClas...

Intro to Backend: Is Browser The Only Place To Send HTTP Request?

Today, I begin to learn the second part of web develop course: backend. Frontend is the stuff that we can see and interactive with, such as HTML, CSS, and JS. We can type our code, style our page, or write some function to make interaction. However, backend is everything else. For example, we type Target web address in the Internet Browser. As we hit "enter", there are a few steps to go through: 1. The HTTP request is sent to a particular server's IP address. 2. The server figures out what to send us 3. It sends a HTTP response back to us Those process we are hard to see, and it happens in less than one second. The instructor said that the browser is not the only place to send the HTTP request, and there are so many choices out there. In this learning course, we are going to use Postman App . Postman allows us to make HTTP requests and viewer responses. It is really for developers to understand how things are working or debug something. In the P...

Learn Bootcamp From Zero

Search This Blog