More information is needed to answer your question. But in general, to create an array using a for loop would look something like this:
var ProductPiecePerBundle = 2;
var data = [];
for (i = 1; i < 11; i++) {
myArray.push({value: ProductPiecePerBundle * i , label: i + " "+ ProductPiecePerBundle * i });
}
To append something to an array you use the push method.
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solved How to Create Array in javascript by loop [closed]