How to pass array parameters to the background

This time I will show you how to pass array parameters to the background, and what are the precautions for passing array parameters to the background. The following is a practical case, let's take a look.

Pass parameters to pass String, so you need to convert the array into a string,

var arr=[1,23,34,5];
var str = arr.toString();

str is passed to the background, str.split(", "); splits the string into elements.

var arr=[1,23,34,5];
var str = arr.toString();
document.write(str);
var getArr = str.split(",");
for(var i=0;i<getArr.length;i++){
 document.write(getArr[i]+"|");
}

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