You can use the force:lightning:lwc:preview command to launch a preview in an iOS or Android native mobile app that you provide. No Salesforce-specific requirements apply to these custom native apps. Your app simply must provide some means of displaying Lightning web components.
How do I preview a lightning component in Salesforce?
Now you can launch mobile previews from the VS Code command palette. Mobile previews immediately reflect visual changes you make to your component as you edit. To verify your Lightning web components in Salesforce on many devices, use virtual device builds of the Salesforce mobile app.
How to preview components in context in the Salesforce mobile app?
Developers can also preview components in context in the Salesforce mobile app, or in a virtual device build of the Salesforce mobile app. Salesforce admins can preview Lightning Experience on mobile from Lightning App Builder. To use Mobile Extensions, install the lwc-dev-mobile Salesforce CLI plug-in.
How to add a LWC component to the record page?
Create Lwc component filePreviewAndDownloads and add the following code to the respective files. Create an Apex class filePreviewAndDownloadController.cls and add the following code to the file. Now place your component to the record page. You will see the following output
How to preview mobile apps in Salesforce using sfdx?
In the Command Palette, enter preview component , and select SFDX: Preview Component Locally. Select Use Android Emulator or Use iOS Simulator. The extension searches your computer for virtual devices on the selected platform. It then displays a list of all discovered virtual device names that support Salesforce mobile previews.
How do I Preview LWC component locally?
Install the LWC Local Development Server# Run sfdx plugins --core to see if the plug-in is installed. If yes, try to start the Local Development server. If successful, you're good to proceed. After you select SFDX: Preview Component Locally, the Command Palette displays a list of preview options.
How do I open LWC components in Salesforce?
Create a Lightning Web ComponentIn Visual Studio Code, open the Command Palette by pressing Ctrl+Shift+P (Windows) or Cmd+Shift+P (macOS).Type SFDX .Select SFDX: Create Lightning Web Component. ... Enter helloWorld for the name of the new component.Press Enter to accept the default force-app/main/default/lwc.More items...
How do I check Salesforce LWC?
From Setup, enter Lightning Components in the Quick Find box, then select Lightning Components.
How do you test a LWC component in VS Code?
Explore Your LWC Tests# To access the test sidebar, click the beaker icon (hover text: Test) in the View bar. If you don't see this icon, make sure the project you have open in VS Code contains an sfdx-project. json file in its root directory.
How do you preview lightning component?
Module 3: Creating the QuickContacts Lightning ComponentStep 1: Create the Component. In the Developer Console, click File > New > Lightning Component. ... Step 2: Create a Tab. In Setup, click Create > Tabs. ... Step 3: Add the Tab to Mobile Navigation. ... Step 4: Preview the Component in the Salesforce1 Application.
Can we see LWC in developer console?
You cannot view Lightning Web Components in the developer console.
How do you preview lightning component in VS code?
In your project, right-click your component folder and select SFDX: Preview Component Locally. In the Command Palette, enter preview component , and select SFDX: Preview Component Locally.
How do I open LWC in browser?
Look for the extension that you are looking for in the left file explorer, click open the link and that should open the file in a new tab. Make the required changes and hit Ctrl+s (PC) or Cmd +s (Mac) to save the change. In case there are errors it will be displayed in the console log right below the editor.
Where we can display lightning components?
Answer: Lightning component can be displayed at following places:Lightning Experience.Salesforce1 App.Template-based Community.Standalone Lightning App.Visualforce Pages (Using Lightning out).
How do you debug a LWC component?
Debugging Techniques Identified Debugging on org can be done by setting breakpoints in code once we enable Lightning to run in the debug mode. Use the Sources tab in chrome and look under the lightning/page/modules/c folder to find your component. js file. Add JavaScript breakpoints to step through the code.
How do you write a LWC test?
Essentials of Testing with LWCWrite one test case for different components and do not integrate multiple test cases into one.Understand the length of the test case, which mainly depends on the component.Before executing your test, the test case should describe the accomplishments.More items...•
Which command will debug the LWC test file?
Debug Mode Run sfdx-lwc-jest with the --debug flag.
How to preview a component?
To preview your component, use one of the following methods. In your project, right-click your component folder and select SF DX: Preview Component Locally. In the Command Palette, enter preview component , and select SFDX: Preview Component Locally. Select Use Android Emulator or Use iOS Simulator. The extension searches your computer ...
What is a virtual device in Salesforce?
You can choose: The default virtual device. A compatible device that you’ve configured in Android Studio or Xcode. A new named device based on the default configuration, using a custom name that you provide. Your most recently used named device, if one exists. To install the Visual Studio Code extension, follow the instructions for Salesforce ...
Install Xcode and Simulators
If you haven’t installed Xcode 12, see Install Xcode. Salesforce mobile app requires Xcode 12.
Install Android Studio and Emulators
If you haven’t installed Android Studio and Android emulators, see Install Android Studio.
Download iOS and Android Mobile App Packages
To obtain virtual device builds, you download the mobile app package files that contain them. For iOS, the package is a ZIP file. For Android, it’s an APK file. The packages are publicly available, don’t require you to log in, and don’t automatically expire.
Install iOS and Android Virtual Device Builds
You can use Android builds on Mac and Windows operating systems. You can use iOS builds on Mac. Install the virtual device build on each simulator or emulator you intend to use.
Install Your Component in a Salesforce Org
You can develop Lightning web components in a Salesforce CLI (SFDX) project. If you’re new to SFDX projects for Lightning Web Components, get started quickly with this Trailhead project.
