We are referring here to Spring ’20 Release Notes available on the Salesforce help section.
We have removed the @track decorator from all the variables in our test project, but it was not working for the few variables.
After more detail, we found one exception while removing the @track decorator, i.e., when using objects. So, if we change the property of an object, it will not render the same on UI. Unless the object variable is not having a @track decorator. Let’s see the below code example,
Here we are returning object wrapper from apex code.
AccountDTWrapper objDT = new AccountDTWrapper(); objDT.pageSize = pageSize; objDT.pageNumber = pageNumber; objDT.recordStart = offset + 1; objDT.totalRecords = totalRecords; objDT.account=[select Id,Name from Account limit 10]; return objDT;
Firstly, if you change any value of the wrapper object here in this js file, it will not reflect on UI if the @track decorator is not used. So I have used the @track decorator for datatypes of the object type.
// Component rerenders. @track result; this.result. recordStart = 10;
We hope to use the information, and you can use the @track decorator object to its optimum use.
We hope you may find this blog resourceful and helpful. If you still have concerns and need more help, don’t hesitate to get in touch with us at firstname.lastname@example.org.
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