Get value by calling a function from External Smart contract

Question

There are 2 smart contract

contract A {
function abc(string _a) public returns (address) {
    return new B(_a);
 }
}
contract B {
  function xyz(string _a) {
  A a = A(contact address); // interface
  a.abc(_a); 
  }
}

How can i get the value of function abc() when i am making a call from function xyz() of contract B which DOES NOT have a return. Especially in Remix and also through web3.js please guide.

Answer 1

This should work

contract A {
function abc(string _a) public returns (address) {
    return new B(_a);
 }
}
contract B {
  function xyz(string _a) {
  A a = A(contact address);
  address addr = a.abc(_a);
  //do something with addr; 
  }
}