To address this problem, Vue provides event modifiers for v-on. Recall that modifiers are directive postfixes denoted by a dot. Order matters when using modifiers because the relevant code is generated in the same order. Therefore using v-on:click.
Unlike the other modifiers, which are exclusive to native DOM events, the. Vue also offers the. When listening for keyboard events, we often need to check for specific keys.
Vue allows adding key modifiers for v-on when listening for key events:. You can directly use any valid key names exposed via KeyboardEvent. The use of keyCode events is deprecated and may not be supported in new browsers. Vue provides aliases for the most commonly used key codes when necessary for legacy browser support:.
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A few keys. You can also define custom key modifier aliases via the global config. You can use the following modifiers to trigger mouse or keyboard event listeners only when the corresponding modifier key is pressed:.
Note that modifier keys are different from regular keys and when used with keyup events, they have to be pressed when the event is emitted. In other words, keyup.Since the string interpolation syntax is simply a part of the HTML as normal text, the browser will render it as such. It will then be displayed for as long as it takes Vue. Usually this happens only for a blink of the eye, but could vary depending on how fast a given browser downloads the Vue framework among other factors.
Perhaps you have noticed a brief flicker when we have been running examples within JSFiddle. This flicker is caused by the string interpolation being displayed initially before being replaced by our data. To solve this, Vue provides a very useful directive named v-cloak. When attaching this directive to an element, it will remain there until the Vue instance associated with the template finishes its compilation.
So when the template is rendered and attached to the DOM, the directive is removed. This is very useful to us, because we can then add a CSS style which ensures that all elements with the v-cloak directive are not displayed.
And when Vue. The example that I have added in advance simply renders a message data property within a paragraph.
Since my browser already has the Vue. So to slow things down a bit, I will wrap the Vue instance within a timeout function with a five second delay. Now we no longer see the string interpolation being displayed initially, but after five seconds, the correct output appears.
And when the Vue instance compiles the template, it removes the v-cloak attribute and the element then appears. Take an online course and become an Vue. Save my name, email, and website in this browser for the next time I comment.
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Here is what you will learn: How to build advanced Vue. Leave a Reply Cancel reply Your e-mail address will not be published. Website optional.In the previous article, we took a look at the v-ifv-else-if and v-else directives.
These directives add or remove elements from the DOM, depending on the evaluation of expressions. What I want to show you now, is a directive that shows or hides elements in the same fashion — namely the v-show directive. This directive works the same way as the v-if directive, except that the elements remain in the DOM and are only hidden by CSS. I have prepared a simple example with two paragraphs and a button in the template. The Vue instance has an isNinja boolean data property which is switched when clicking the button.
What I want to do, is to show the first paragraph if isNinja is trueand show the second paragraph if it is false. I can do the same with the second paragraph, except that I will negate the boolean by prefixing an exclamation mark.
Note that I could also have used more complex expressions here, but these ones are sufficient for this example. Clicking the button now will switch from one paragraph to the other. So as you can see, the v-show shows or hides elements unlike v-if which adds or removes elements. Take an online course and become an Vue. Save my name, email, and website in this browser for the next time I comment.
Notify me of follow-up comments by email. Previous Post. Next Post. Featured Learn Vue. Here is what you will learn: How to build advanced Vue. Leave a Reply Cancel reply Your e-mail address will not be published. Website optional.The directive v-if is used to conditionally render a block. Because v-if is a directive, it has to be attached to a single element. But what if we want to toggle more than one element? A v-else element must immediately follow a v-if or a v-else-if element - otherwise it will not be recognized.
It can also be chained multiple times:. Similar to v-elsea v-else-if element must immediately follow a v-if or a v-else-if element. Vue tries to render elements as efficiently as possible, often re-using them instead of rendering from scratch. Beyond helping make Vue very fast, this can have some useful advantages. For example, if you allow users to toggle between multiple login types:. Then switching the loginType in the code above will not erase what the user has already entered.
Another option for conditionally displaying an element is the v-show directive. The usage is largely the same:. The difference is that an element with v-show will always be rendered and remain in the DOM; v-show only toggles the display CSS property of the element. In comparison, v-show is much simpler - the element is always rendered regardless of initial condition, with CSS-based toggling. Generally speaking, v-if has higher toggle costs while v-show has higher initial render costs.Spin a yarn examples
See the style guide for further information. When used together with v-ifv-for has a higher priority than v-if.
See the list rendering guide for details. Stay at home and level up. Special Sponsor. Platinum Sponsors. Learn how conditional rendering works with a free lesson on Vue School. Username Email.How to hide parts of text. The optional callback parameter is a function to be executed after the hide or show method completes you will learn more about callback functions in a later chapter. The following example demonstrates the speed parameter with hide :. You can also toggle between hiding and showing an element with the toggle method.
The optional speed parameter can take the following values: "slow", "fast", or milliseconds. The optional callback parameter is a function to be executed after toggle completes. For a complete overview of all jQuery effects, please go to our jQuery Effect Reference. If you want to report an error, or if you want to make a suggestion, do not hesitate to send us an e-mail:. Because time is valuable, we deliver quick and easy learning. At W3Schools, you can study everything you need to learn, in an accessible and handy format.
HOW TO. Your message has been sent to W3Schools. W3Schools is optimized for learning, testing, and training. Examples might be simplified to improve reading and basic understanding. Tutorials, references, and examples are constantly reviewed to avoid errors, but we cannot warrant full correctness of all content.
Stack Overflow for Teams is a private, secure spot for you and your coworkers to find and share information. First of all jQuery works out of the box.
This is one main difference. So you have to initialize your Vue Component or App. You are binding that component with its data to one specific HTML tag inside your template.Bass weight chart
This you will know from jQuery. After that you declare some variable that holds the toggle state. In this case it is isHidden.
The initial state is false and has to be declared inside the data object. For better understand please read the documentation of Vue:. I am recommening you to read in this order if you want to get a quick overview.Kiss me episode 17
But please consider reading the whole or at least longer parts of the documentation for better understanding. This is a very basic Vue question. I suggest your read the guide, even the first page will answer your question. How are we doing? Please help us improve Stack Overflow.
Take our short survey. Learn more. Hide div onclick in Vue Ask Question. Asked 2 years, 1 month ago. Active 1 year, 1 month ago. Viewed 45k times. How can I hide an element with Vue. There's only one element to hide. Victor Berland Victor Berland 1 1 gold badge 3 3 silver badges 9 9 bronze badges. Active Oldest Votes. Steven Grimaldo 53 7 7 bronze badges.
Michael Czechowski Michael Czechowski 2, 12 12 silver badges 38 38 bronze badges. RoyJ Did you change the answer state? I did not flag the answer or anything, just posted the comment. I upvoted your edited answer. Ok, I was wondering, because first it was flagged as answer, then after the edit not anymore. Just made this the answer instead of the other answer as this was the one that solved what I needed.Previously we've seen in Vue how to display data to the page and how to bind data to a HTML attribute.
In this tutorial we're going to use conditions to show or hide a div, for this example we're going to use a button to toggle whether to display the div or not. First lets build the page in HTML, it's going to be very simple just a div and a button. When you view the page you'll see the div with the message inside it, we want to build something in Vue to hide the div by default, then click the button to show the message then click the message again to show it.
Easy isn't it!Hdpe pipe bending radius
As you can see we've changed the HTML to have a v-if with a seen value on the directive, this can be used as a data point by Vue, if seen is true the element will be shown, if seen is false the element will be hidden. Because Vue is reactive it will watch for changes to seen and will show or hide the element accordingly. We add a data property of seen which is set to true, this means that the element will be shown. Then we create a method of toggle which will then check the value of the seen property and reverse it.
As you can see the difference between VueJS development and jQuery development is that the logic isn't bound to a certain element. Whereas in jQuery all your logic is bound to certain elements making it harder to expand on. We've been developing for years to split out the logic and keep HTML clean and move business logic into a different areas of the app.
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