if (x) y else z;
if(a)b else if (c) else d; etc
x:=(if (a) b else c);

a and b or c  // usually the same as if(a) b else c, beware if b evals to False

switch(x){
  case(1){...}
  case("2"){...}  // matches anything
  case(a)[fallthrough]{...}  // no break, no break has to be explicit
  case(b){...}
  else {...} // case a C's default, has to be at the end
}