May 2019
Intermediate to advanced
546 pages
12h 41m
English
Content preview from Salesforce Platform Developer I Certification Guide
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Component attributes
The variables of your Lightning component are called attributes. A Visualforce component also has attributes, but the main difference is that the attributes of a Lightning component can be filled in at the runtime of your component (when a user enters some information in a form), or when the user is calling an action by pressing a button.
Let's take a look at the following component with the name HelloWorld.cmp:
<aura:component implements="flexipage:availableForRecordHome,force:hasRecordId" access="global"> <aura:attribute name="message" type="String" default="World" /> <p>Hello {!v.message}</p></aura:component>
In this example, the output in your component will be Hello World. We've defined an attribute in our component ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.