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Kishore Vamsi 6Kishore Vamsi 6 

how to handle error in imperative method for below code

I am getting below error when imperative method return null values. 
Cannot add property 0, object is not extensible

name=[];

callaccountName(){
        getaccountList().then(data => {
                this.name = data;
                
        })
    }


Error :Cannot add property 0, object is not extensible

 
ANUTEJANUTEJ (Salesforce Developers) 
Hi Kishore,

The response from apex might have become non-extensible with additional parameters.
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/preventExtensions
As workaround you can use result = Object.assign({}, result) for objects, or item = Object.assign({}, item) in a loop for each item in result for arrays
Or one more dirty hack is JSON.parse(JSON.stringify(result));

I hope this helps and in case if this comes in handy can you please choose this as best answer so that it can be used by others in the future.

Regards,
Anutej