What's one reason to sign up for trailhead with a social media account?

When should you change your username in Trailhead playground?

In which scenarios do you need to know your Trailhead playground username and password?

The new Playground Starter app launches automatically when Salesforce Trailhead Playground is opened. It provides tips, best practices insights and walk-throughs to help users launch packages and applications in Trailhead, and easy access to login credentials.

Main advantages of using LWC over Lightning Components, are:

• LWC is Fast.
• Improved API support for third-party APIs.
• It is light-weight.

Constructor() method fires when a component instance is created.

Why can't we use static class instead of Singleton?

What is difference between static and singleton class?

What is difference between Singleton and immutable class?

What is difference between mutable and immutable?

The ability to create decorators is part of ECMAScript, but these three decorators are unique to Lightning Web Components. @api: To expose a public property, decorate it with @api. Public properties define the API for a component.

Federation ID is a unique username for each user that can be shared across multiple apps. Sometimes the ID is the user's employee ID.

Immutability is the idea that data or objects should not be modified after they are created. ... Pat Helland of Salesforce gives a great talk on how “Immutability Changes Everything“.

Does react use Web Components?

What is connectedCallBack in LWC?

What is Salesforce Lightning Web components?

What decorators are available in LWC Lightning Web component?

The Lightning Web Components programming model has three decorators that add functionality to a property or function.

The ability to create decorators is part of ECMAScript, but these three decorators are unique to Lightning Web Components.

Decorators dynamically alter the functionality of a property or function. The ability to create decorators is part of ECMAScript, but these three decorators are unique to Lightning Web Components. @api: To expose a public property, decorate it with @api. Public properties define the API for a component.

Which user can edit a record after it has been locked for approval?

How do I lock record in approval process?

How do you lock the records from being edited by others in SOQL?

From Setup, enter Sharing Settings in the Quick Find box, then select Sharing Settings. Click Edit in the Organization-Wide Defaults area. Select the Manual User Record Sharing checkbox to display the Sharing button on user detail pages, which enables users to share their records with others.

So when someone “asks” Salesforce to update a record, Salesforce first locks the record so no one else can update it until the lock is released. If someone tries to (asks for an) update the record while it's locked, Salesforce will try up to 10 times to obtain a record lock, before giving up, and throwing an error.

Salesforce DX adds new tools that streamline the entire development life cycle. It improves team development and collaboration, facilitates automated testing and continuous integration, and makes the release cycle more efficient and agile. But Salesforce DX is so much more than just a new set of tools!

What is granular locking in Salesforce?

How can you lock record using SOQL so that it Cannot be modified by other user?

Is it possible for a user to own a record and not see it in Salesforce?

1. Using Record Type & Page Layouts: Create two different record types say “Open” & “Locked” and change the record type of the record using workflow field update or trigger. And then create a separate page layout for the “Locked” record type with all fields marked as ‘Read-Only’. Remove the ‘Edit’ and ‘Delete’ buttons from the page layout. However,…

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Selects one or more values from a one-dimensional array given a start and, optionally, an end position, and returns a one-dimensional array. An error occurs if the start value is greater than the end value.

How do you use the map in the lightning component?

How do you use the wrapper class list in lightning component?

How do you use wrapper class in LWC?

Decorators dynamically alter the functionality of a property or function. The ability to create decorators is part of ECMAScript, but these three decorators are unique to Lightning Web Components. @api: To expose a public property, decorate it with @api. Public properties define the API for a component.

Import a wire adapter using named import syntax. import { wire} from 'lwc'; Decorate a property or function with @wire and specify the wire adapter. Each wire adapter defines a data type.

Can we call Visualforce page from lightning component?

How do I use the lightning component in Visualforce page?

How do you call a component from an application in lightning?

1. Create lightning component.
2. Step 2 : Create lightning component tab.
3. Step 3 : Add component tab on Salesforce1 navigation menu.

Aura:Method enables you to directly call a method in a component's client-side controller instead of firing / handling a component event. With the help of <aura:method > we can call child component method from parent component. Get Message from Child Component to parent Component.

How do I create a lightning app builder in Salesforce?