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What is the use of aura:id in Salesforce lightning component?
What is the use of aura:id in salesforce lightning component?
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2 Replies
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Hi,
aura:id is a local id. A local ID is an ID that is only scoped to the component. A local ID is often unique but it’s not required to be unique.
Ex.-<lightning:button aura:id="button1" label="button1"/>
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This reply was modified 4 years, 5 months ago by Piyush.
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This reply was modified 4 years, 5 months ago by
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Hi Laveena,
You can retrieve a component using its local ID in your JavaScript code. A local ID is an ID that is only scoped to the component. A local ID is often unique but it’s not required to be unique. Local ID is created by the aura:id attribute.
For Example:
<lightning:button aura:id="button1" label="button1"/>
Find the button component by calling cmp.find("button1") in your client-side controller, where cmp is a reference to the component containing the button.
find() returns different types depending on the result.
- If the local ID is unique, find() returns the component.
- If there are multiple components with the same local ID, find() returns an array of the components.
- If there is no matching local ID, find() returns undefined.
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