Contents
What are the prerequisites for using if in aura?
Prerequisites : basic understanding of Lightning Components. aura:if evaluates the isTrue expression on the server and instantiates components in either it’s body or else attribute. Only one branch is created and rendered.
How to use multiple condtions in aura : if tag?
Switching condition unrenders and destroys the current branch and generates the other In aura:if tag we can not use [&& ,AND ,||, OR] operator for use multiple conditions in isTrue attribute, but…. we can use logical Functions in aura:if tag like or (), and () . in this sample code we can see how to use multiple Boolean conditions in aura:if tag.
How to get field value in aura attribute?
I’m new to Salesforce development, but not new to web development (Angular, React, C#, JS, etc…). So it’s been very frustrating that I cannot get something so simple as the example below to work. I want to display content based upon a condition of a custom fields value:
How to share JavaScript code in Lightning aura components?
There are three main ways to share JavaScript code among your Lightning Components developed with the Aura programming model that I want to touch on in this blog post and how Lightning Locker Service and the Freeze JavaScript Prototypes (new in Winter ’19) setting may affect which option you choose.
How does if and renderif work in aura?
The framework evaluates the isTrue expression and instantiates components either in its body or else attribute. aura:if instantiates the components in either its body or the else attribute, but not both. aura:renderIf instantiates both the components in its body and the else attribute, but only renders one.
How to write not ( field _ name ) in aura if statement?
I am close to having the conditions render like I want, but I can’t figure out how to write in a not (field_name) type of condition into the aura:if statement. Since aura:if require isTrue, I need to reverse engineer the condition so that the message displays when isTrue=”not (Boolean_Field)
What happens when the istrue condition is false in aura?
The beauty of aura:if is when the isTrue condition is false the content doesn’t actually get created and hence never rendered. So, it will not consume time to create content and then hide it.
How does the if function work in aura?
Conditionally instantiates and renders either the body or the components in the else attribute. aura:if evaluates the isTrue expression on the server and instantiates components in either its body or else attribute. Only one branch is created and rendered.