Hi everyone. Glad to be here.
I'm still struggling with some aspects of nodejs, and perhaps even
javascript in general, so thank you everyone for your patience in advance.
I've been able to do this in one file, but when I throw the require() in
it, it stops working.
I understand there's a util.inherits() that also works with inheritance,
but I'd like to manually set the enumerable and writable properties myself.
Here's a single file version that works:
var sys = require("util");
// client object
var Client = {
ip: null,
stream : null,
state: "Connecting",
eyes: 2,
legs: 4,
name: null,
toString: function () {
return this.name + " with " +
this.eyes + " eyes and " +
this.legs + " legs, " + this.state + ".";
}
}
// John inherits Client object
var john = Object.create(Client, {
name: {value: "John", writable: true},
state : {value: "working", writable: true}
});
sys.puts(john);
// John with 2 eyes and 4 legs, working.
-----------------------
Here's when it stops working
---- client.js ----
module.exports = function (instream, inip){
return {
ip: null,
stream : null,
state: "Connecting",
eyes: 2,
legs: 4,
name: null,
toString: function () {
return this.name + " with " +
this.eyes + " eyes and " +
this.legs + " legs, " + this.state + ".";
},
};
};
---- john.js ----
var Client = require("./client");
module.exports = function (inname, instate){
return Object.create(Client, {
state : {value: inname, enumerable: false, writable: true},
name: {value: instate, enumerable: true, writable: true},
});
};
---- index.js ----
var sys = require("util");
var Client = require("./client")("stream","168.192.0.1");
sys.puts(Client);
// null with 2 eyes and 4 legs, Connecting.
var john = require("./john")("John","Sleeping");
sys.puts(john); // ERROR: Function.prototype.toString() is not generic, ie.
inheritance failed.
sys.puts(sys.inspect(john)); // { name: 'Sleeping' } for some reason? Is it
because name was declared as the second line of that object?
sys.puts(sys.inspect(john,true)); // { name: 'Sleeping', [state]: 'John' }
--------------------------------------
What am I doing wrong? Am I missing some conceptual change when I split
them up into different files and link them together using require() ?
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