Question

Hi to

function proxyFunc(func) {
  console.log("Proxying ", func.name);
  var proxied = func;
  func = function() {
   console.log("Calling proxied ", func.name);
   return proxied.apply(this, arguments);
  };
}

Unfortunately the proxying does not work. I already figured out that the assignment of the proxy function to the original function is the problem, but I don t know how to make it work:

func = function() { ... }

Answer 1

你们是否期待这样做?

function proxyFunc(original) {
    console.log("Proxying ", original.name);
    return function() {
       console.log("Calling proxied " + original.name);
       return original.apply(this, arguments);
    };
}

如果你做些什么,这将有助于:

function proxyMember(obj, member) {
    var original = obj[member];
    console.log("Proxying ", member);
    obj[member] = function() {
       console.log("Calling proxied " + member);
       return original.apply(this, arguments);
    };
}

proxyMember(obj, "foo");

友情链接