The fastest I come up with is if you create a new object: var key, keys = Object.keys(obj); var n = keys.length; var newobj={} while (n–) { key = keys[n]; newobj[key.toLowerCase()] = obj[key]; } I’m not familiar enough with the current inner working of v8 to give you a definitive answer. A few years ago … Read more
That’s not JSON. It’s just Javascript objects, and has nothing at all to do with JSON. You can use brackets to set the properties dynamically. Example: var obj = {}; obj[‘name’] = value; obj[‘anotherName’] = anotherValue; This gives exactly the same as creating the object with an object literal like this: var obj = { … Read more
You can do it with setAttribute document.getElementById(“contentarea”).setAttribute(‘data’, ‘newPage.html’); EDIT: It is also recommended that you use the window.onload to ensure that the DOM has loaded, otherwise you will not be able to access objects within it. It could be something like this: function changeData(newURL) { if(!document.getElementById(“contentarea”)) return false; document.getElementById(“contentarea”).setAttribute(‘data’, newURL); } window.onload = changeData; You … Read more
You can just add a computed property to your struct to return a Dictionary with your values. Note that Swift native dictionary type doesn’t have any method called value(forKey:). You would need to cast your Dictionary to NSDictionary: struct Test { let name: String let age: Int let height: Double var dictionary: [String: Any] { … Read more
Updated for PHP 7.2 PHP 7.2 introduced a behavioral change to converting numeric keys in object and array casts, which fixes this particular inconsistency and makes all the following examples behave as expected. One less thing to be confused about! Original answer (applies to versions earlier than 7.2.0) PHP has its share of dark alleys … Read more
for in loops over enumerable property names of an object. for of (new in ES6) does use an object-specific iterator and loops over the values generated by that. In your example, the array iterator does yield all the values in the array (ignoring non-index properties).
You can’t append to an existing file created with an ObjectOutputStream, at least not without effort. There is a trick somewhere about extending ObjectOutputStream and overriding the writeStreamHeader() method so as not to write the stream header the second time, but I’m not in favour of it. You should really rewrite the whole file, maybe … Read more
Introduce a new class as below @XmlRootElement(name = “responseList”) public class ResposeList { private List<Object> list; public List<Object> getList() { return list; } public void setList(List<Object> list) { this.list = list; } } and set the list as below @GET @Path(“/get”) @Produces(MediaType.APPLICATION_XML) public ResposeList addObjects() { Book book = new Book(); book.setName(“Here is the Game”); … Read more
In the first example, your objects don’t overlap in time: one is created then destroyed, then another is created with the same id. When you compare them with is, you are holding onto both objects, so they get different ids.
The code produces undefined behavior, because it attempts to dereference an uninitialized pointer. Undefined behavior is unpredictable and follows no logic whatsoever. For this reason, any questions about why your code does something or doesn’t do something make no sense. You are asking why it runs? It doesn’t run. It produces undefined behavior. You are … Read more