This is the summary of Lightning Locker Service in Salesforce.
If you are not aware of Lightning Locker Service then I strongly recommend, Learn Lightning Locker Service here.
What Locker Service does is prohibit certain types of behaviors, such as trying to peek into the DOM of a component outside your own namespace.
For example, Locker Service disallows the following code example:
<lightning:button aura:id="button1" label="My Button" />
var element = component.find("button1").getElement();
You can’t use component.find("button1").getElement() to access the DOM element created by lightning:button.
Locker Service doesn’t allow a Lightning component to access the DOM for lightning:button because the button is in the lightning namespace and Lightning Component is in the namespace.
Check out Disabling Locker Service for a Particular Component In Salesforce Expert Interview
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If you are not aware of Lightning Locker Service then I strongly recommend, Learn Lightning Locker Service here.
What Locker Service does is prohibit certain types of behaviors, such as trying to peek into the DOM of a component outside your own namespace.
For example, Locker Service disallows the following code example:
<lightning:button aura:id="button1" label="My Button" />
var element = component.find("button1").getElement();
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You can’t use component.find("button1").getElement() to access the DOM element created by lightning:button.
Locker Service doesn’t allow a Lightning component to access the DOM for lightning:button because the button is in the lightning namespace and Lightning Component is in the namespace.
Check out Disabling Locker Service for a Particular Component In Salesforce Expert Interview
Latest Salesforce Interview Questions and Answers: