大约有 45,000 项符合查询结果（耗时：0.0491秒） [XML]
Can you use a trailing comma in a JSON object?
When manually generating a JSON object or array, it's often easier to leave a trailing comma on the last item in the object or array. For example, code to output from an array of strings might look like (in a C++ like pseudocode):
...
Why are interface variables static and final by default?
...follow
|
edited Mar 17 '15 at 17:25
Dave Jarvis
27.6k3434 gold badges157157 silver badges281281 bronze badges
...
How to create SBT project with IntelliJ Idea?
I just got started with Scala/LiftWeb/Sbt developing, and I'd like to import a Sbt project in IntelliJ Idea.
Actually, I managed to import my project in two different ways:
...
How do I write a correct micro-benchmark in Java?
How do you write (and run) a correct micro-benchmark in Java?
11 Answers
11
...
How does __proto__ differ from constructor.prototype?
It always returns the object with rating = 3.
8 Answers
8
...
What does void* mean and how to use it?
...neric" pointer type. A void * can be converted to any other pointer type without an explicit cast. You cannot dereference a void * or do pointer arithmetic with it; you must convert it to a pointer to a complete data type first.
void * is often used in places where you need to be able to work wit...
Which is preferred: Nullable.HasValue or Nullable != null?
...
The compiler replaces null comparisons with a call to HasValue, so there is no real difference. Just do whichever is more readable/makes more sense to you and your colleagues.
share
...
Detect when an image fails to load in Javascript
...
You could try the following code. I can't vouch for browser compatibility though, so you'll have to test that.
function testImage(URL) {
var tester=new Image();
tester.onload=imageFound;
tester.onerror=imageNotFound;
tester.src=URL;
}
function imageFound() {
alert('That im...
Using Kafka as a (CQRS) Eventstore. Good idea?
...
Kafka is meant to be a messaging system which has many similarities to an event store however to quote their intro:
The Kafka cluster retains all published messages—whether or not they
have been consumed—for a configurable period of time. For example if
the retention is set ...
What does “var FOO = FOO || {}” (assign a variable or an empty object to that variable) mean in Java
...e, i.e. a named object under which functions and variables can be created without unduly polluting the global object.
The reason why it's used is so that if you have two (or more) files:
var MY_NAMESPACE = MY_NAMESPACE || {};
MY_NAMESPACE.func1 = {
}
and
var MY_NAMESPACE = MY_NAMESPACE || {};
M...