Is it possible to use blockchain using javascript? (can smartcontracts be done in javascript?) Every blockchain has a SDK, the part of the software ...
source https://www.google.com/url?rct=j&sa=t&url=https://stackoverflow.com/questions/54753331/is-it-necessary-to-use-a-cryptocurrency-to-make-a-payment-using-blockchain&ct=ga&cd=CAIyGmM2Nzk3ODA2ZWViNjVjODI6Y29tOmVuOlVT&usg=AFQjCNEO1YoDnOCP5FfLb6gQzyljYOSarQ
