I've take a look for some answers about this but any worked here.
I have this object:
[ { transactionId: 'oapcfgajnasdasddmamdgogjilkjga.AO-J1Oyho4K_fgrzggggggasdasdasdykGfBYG4',
    orderId: undefined,
    productId: 'casdasd',
    purchaseDate: 1asd4831asdasd2080asd5241,
    quantity: 1,
    expirationDate: '14asdggg8g1' } ]
I need to delete the orderId parameter. I tried this two options of code but did not work.
one:
 var index = productsList.indexOf("orderId");
        productsList.splice(index, 1);
two:
           for(var i=0 ; i<productsList.length; i++)
{
    if(productsList[i].value=='orderId')
        productsList.splice(i);
}
Any idea?
 
    