How do you use attributes in lightning component?
tag is used to add an attribute to the lightning component and Salesforce lightning App.
- Each attribute must have “name” and “type“.
- To make attribute as required use required=”true” in the tag.
- To make default value use default=”string or integer“.
What are valid type of attribute in lightning?
A: Basic Types: These are the basic attributes that contain values of primitive types like integer, string, boolean etc. 1. String :- It stores simple text values like color, name etc. Boolean :- It stores boolean values like true or false.
How do you add attributes in lightning component?
Use the tag to add an attribute to the component or app. All attributes have a name and a type. Attributes may be marked as required by specifying required=”true”, and may also specify a default value.
How do I add two numbers in Salesforce?
Additional Help
- public integer addmethod(){ integer a = 10; integer b = 10; integer c; c = a + b; system.debug(‘@@@@@c = ‘+c); return c; } }
- Now goto developer console and type: add a1 = new add(); a1. addmethod();
- Check the results in the debug log.
How to access attribute in a lightning component?
To access attribute in our Lightning Component or Lightning Application, we have to use value providers. (we will cover value providers in-depth in upcoming lesson). for now, assume value provider is just a syntax to access ‘aura:attributes’ to lightning component code.
When to use whom attribute in Lightning aura?
In this case we’ve got an attribute named whom of type String. If no value is specified, it defaults to “world”. Though not a strict requirement, tags are usually the first things listed in a component’s markup, as it provides an easy way to read the component’s shape at a glance.
How to add an attribute to a component?
Attributes enable you to make components more dynamic. Use the tag to add an attribute to the component or app. Let’s look at the following sample, helloAttributes.app:
How to set collection types in Lightning aura?
The instanceof operator is unreliable due to the potential presence of multiple windows or frames. There are several ways to set items in a list. To use a client-side controller, create an attribute of type List and set the items using component.set ().