anonymous-function

What does this code refer too? queryString: function() { //some code } I tested it in the WebConsole (Firefox) but it wouldn't execute, so I'm thinking that it isn't equivalent to function queryString() {} . So what is it exactly? You are missing some code there, but I assume its part of an object declaration like this: var obj = { queryString: function() { //some code } }; obj.queryString(); It assigns a function as a property of an object literal. It would be equivalent to this: var obj = {}; obj.queryString = function() { ... }; obj.queryString(); In general, the object literal syntax looks

Possible Duplicate: In Php 5.3.0 what is the Function “Use” Identifier ? Should a sane programmer use it? I've been examining the Closures in PHP and this is what took my attention: public function getTotal($tax) { $total = 0.00; $callback = function ($quantity, $product) use ($tax, &$total) { $pricePerItem = constant(__CLASS__ . "::PRICE_" . strtoupper($product)); $total += ($pricePerItem * $quantity) * ($tax + 1.0); }; array_walk($this->products, $callback); return round($total, 2); } And somebody please give me an explanation about the usage of use in this code. function ($quantity,

I see a lot of code like: var myApp ={}; (function() { console.log("Hello"); this.var1 = "mark"; //"this" is global, because it runs immediately on load. Caller is global myApp.sayGoodbye = function() { console.log("Goodbye"); }; })(); Which causes the anonymous function to execute immediately. But what is the advantage of this, compared to just putting the code inline? var myApp ={}; console.log("Hello"); var1 = "mark"; myApp.sayGoodbye = function() { console.log("Goodbye"); }; Apparently it's to do with scope of the function, but as the function is anonymous and called by window, it's scope

on a website i want to do this: (simplified) myHandlers = new Array(); for(var i = 0; i < 7; i++) { myHandlers.push(new Handler({ handlerName: 'myHandler'+i, // works, e.g. ->myHandler1, 2, 3 etc. handlerFunc: function(bla) { /*...*/ alert(i); } // doesn't work,all return 7 } } I could set the counter as another attribute of my Handler (which would copy the current value) and use it inside my function, but I guess, there is also a way to actually copy this value, no? When handlerFunc is called, the i inside the function refers to the i of the for loop. But that i does probably not have the

Below is a method in which I am trying to retrieve an user object by calling getSelf(). Problem is that the result is always null since the Volley request has not finished at the time of returning the result. I'm somewhat new to async processes, so I am not sure of the best way to have the method wait for the result of the API call to return the UserBean object. Can anyone give me some help? public UserBean getSelf(String url){ RpcJSONObject jsonRequest = new RpcJSONObject("getSelf", new JSONArray()); JsonObjectRequest userRequest = new JsonObjectRequest(Request.Method.POST, url, jsonRequest,