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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.
How to use isture attribute of Aura in HTML?
<aura:if isTrue=” {!and (or (orCondition1, orCondition2), andCondition1)} I agree that this is messy and needs to be updated to something that more similarily matchs the apex rendered= syntax of && for “and” and || for “or”. It’s not a hack. “&” is reserved character in HTML.
When to use Hello and bye in istrue?
It will work. What you were doing wrong is your T is small in isTrue as it is case sensitive and also Hello and bye should be in single quotes when you are comparing an attribute to a string: Thanks for contributing an answer to Salesforce Stack Exchange!
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 use multiple condtions in aura?
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.
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 filter the collection used in aura?
Option 1: Have filtered logic in Javascript and use it in Component. This is preferred. Option 2: You can use conditional rendering inside iteration. Option 1 is preferred as this option will have performance issues as Aura_Prod library has to filter it in HTML directly but before filtering, it runs numerous functions on whole list.
Can you use an expression in aura ID?
As such, you can’t use an expression in aura:id (it will be treated as literal text). Instead, you can use the element’s id via document.getElementById: First problem is that we cannot use expression while assigning aura:id. Aura:id need to be static.
Where do I find menu item in aura?
One menu-item is a sub-menu with list of opportunities, this list is created with aura:iteration over a list of opportunities. When selecting a menu or a sub-menu, I need to make it look selected (change css attribute). For this to happen, I need to find this menu item in my controller.
What are the public parts of an aura component?
Components are the functional units of Aura, which encapsulate modular and reusable sections of UI. They can contain other components or HTML markup. The public parts of a component are its attributes and events. Aura provides out-of-the-box components in the aura and ui namespaces.
How are components saved in the aura namespace?
Aura provides out-of-the-box components in the aura and ui namespaces. Every component is part of a namespace. For example, the button component is saved as button.cmp in the ui namespace can be referenced in another component with the syntax , where label=”Submit” is an attribute setting.