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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