function checkIsItContract(address contractAddress)public view returns(bool check){
uint codeSize;
assembly{
codeSize := extcodesize(contractAddress)
}
check = codeSize > 0;
}
function checkIsItContract(address contractAddress)public view returns(bool check){
uint codeSize;
assembly{
codeSize := extcodesize(contractAddress)
}
check = codeSize > 0;
}