Tips on implementing polymer.js to toggle the visibility of an element

On my HTML page, I have two different paper-card elements:

<paper-card done> 
<paper-card>

In addition, there is a button:

<paper-icon-button icon="menu" on-tap="_show"></paper-icon-button>

I am trying to utilize the _show function to toggle the view state of <paper-card done> by changing its display style from none to block. How can I achieve this using Polymer? Thanks.

Answer №1

If you're looking to quickly toggle visibility in Polymer, one effective method is using the "hidden" attribute along with a boolean property and binding. Take a look at this example:

<paper-card done hidden$="[[hideDone]]">

The '$' symbol before the equal sign signifies to Polymer that it's a boolean property needing specific handling.

Simply include

this.set('hideDone', true)

in your '_show' function, and you should be good to go :)

To reverse the action and make it visible again, just switch the property back to false and repeat as needed.

Similar questions

If you have not found the answer to your question or you are interested in this topic, then look at other similar questions below or use the search

Can someone help me extract the text from the line directly beneath the <span> tag in HTML code, but only if it has a certain class and specific content

I am currently developing a script to extract product specifications from an e-commerce website. I have a list of URLs that lead to different products, and my goal is to scrape the specific specs required for each item. Although I have been using ParseHub ...

Is the order of state variables important in React components?

Upon executing the code below, an error "Cannot read properties of null (reading 'login')" occurs, triggered by reaching the return statement at the end. This error persists despite the presence of checks for the boolean before the return stateme ...

Tips for specifically targeting the clicked table row using angularJS directives ng-show and ng-hide

Seeking assistance with implementing a toggle function in an angularJS app for showing/hiding a specific table data section. Currently, the toggling functionality is working, but it toggles every row in the table instead of just the clicked row. See this e ...

Creating an input range element and its event handler dynamically within the ajaxStop function allows for real-time updates based on the

As a beginner in JavaScript development and Ajax, I am currently working on creating a webpage that utilizes Ajax to fetch data from a server. The data is then used to draw geoJSON features on a map using Leaflet. These feature sets need to be toggleable f ...

When I click the toggle on my mobile device, I desire for my navigation bar to overlap the content

Is it possible to have my navigation bar overlap the content when toggled on mobile size, without causing the content to scroll down? Below is the HTML, CSS, and JS code for my site. Can someone help me with coding this functionality? $(function() { ...

Issues with the functionality of Angular 2 routerLink

Unable to navigate from the homepage to the login page by clicking on <a routerLink="/login">Login</a>. Despite reviewing tutorials and developer guides on Angular 2 website. Current code snippet: index.html: <html> <head> ...

JavaScript - Issue arises when evaluating the sine of complex numbers of large magnitudes

I have developed a unique sine calculator that can handle the evaluation of the sine of complex numbers by utilizing polar coordinates and computing part of the infinite series defining the sine function. The calculator performs smoothly when dealing wit ...

What is the best way to position a text input field at the top?

As a beginner in Html and Css, I am exploring how to position the text "Your Comment" at the top of an input field. https://prnt.sc/1k74619 <div class="comment"> <input placeholder="Your Comment" type="text&qu ...

Tips on minimizing object array and extracting its worth using javascript

I am currently facing a challenge with reducing an object array. The array is as follows: arr=[{title: 'AP', CurrentDate: 2019-07-31, Status: 'done', NoOfEvents:'6' }] My goal is to reduce this array object specifically to ex ...

C# - Issue with Webbrowser failing to fully load pages

I am facing an issue with loading pages completely on the web browser, likely due to heavy usage of JavaScript. To address this problem, I have integrated another browser into the project called Awesomium. I am wondering if Awesomium supports using getEle ...

Encountering a ReferenceError while trying to include the ng2-bootstrap script

I'm in the process of integrating ng2-bootstrap into my project. I have attempted adding the script and including the cdn, but I keep encountering the following error: ng2-bootstrap.js:1 Uncaught ReferenceError: System is not defined ng2-bootstrap.js ...

Jquery removes brackets from data following an ajax request

My data text file looks like this: [[1412525998000,"91.83"],[1412525998000,"91.83"],[1412525997000,"90.14"]...ETC However, when I receive this data via an ajax request, something strange happens. The 'data' variable turns into this: 1412525998 ...

Angular real-time data tracker

As a newcomer to Angular, I am facing some challenges trying to achieve real-time data updates in my app. My goal is to retrieve JSON data from an MSSQL server via a web server. I have successfully fetched data using the following code: export class AppC ...

Aligning images and input fields vertically with relative measurements

I'm looking for a way to vertically position two images, one on the left and one on the right, so that they are centered between labels and input fields within a containing div. Is it achievable using only relative lengths? Check out this jsfiddle fo ...

Upon adding data to mongodb, an error message is displayed stating "Cannot read property '_id' of undefined."

Backend Server-Side Code The following is my server-side code. Below it, you can find the client-side code along with the error that is being displayed. I am having trouble identifying what the issue might be. app.post("/service", async (res, re ...

Creating a Three.js visualization within an ExtJS Panel

Looking for help with rendering a Three.js scene in an ExtJS panel. Does anyone have any demo code or tips for this? ...

calling object functions using additional parentheses

After reviewing the passport.js documentation, I came across this piece of code: app.get('/login', function(req, res, next) { passport.authenticate('local', function(err, user, info) { if (err) { return next(err); } if (!u ...

Can you confirm if Jquery's $.POST method works asynchronously?

I have been attempting to create a div on my index page that, when clicked, triggers a JavaScript function to send data to a PHP page for computations and MySQL queries. However, despite setting an onclick event handler in my main PHP page, the Chrome deve ...

How can parameters be sent without using the .jshintrc file with the gulp-jshint package?

Currently in the process of transitioning a grunt project to a gulp project. In the existing gruntfile, there is a section for the jshint task that looks like this: jshint: { options: { trailing:true, evil:false, indent:4, ...

Unable to use the .focus() method on a Link component by utilizing references in React Router 4

I am currently working with the Link component in react-router (v4). I have successfully attached a ref to this component and can log the reference. However, when I try to use linkRef.current.focus(), I encounter the following error: linkRef.current.focu ...