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How to detect my browser version and operating system using JavaScript?
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Detecting browser's details:
var nVer = navigator.appVersion;
var nAgt = navigator.userAgent;
var browserName = navigator.appName;
var fullVersion = ''+parseFloat(navigator.appVersion);
var majorVersion = parseInt(navigator.appVersion,10);
var nameOffset,verOffset,ix;
// In Ope...
When should one use RxJava Observable and when simple Callback on Android?
...toId)
.observeOn(AndroidSchedulers.mainThread())
.subscribe(new Action1<Photo>() {
@Override
public void call(Photo photo) {
// do some stuff with your photo
}
});
Callback:
api.getUserPhoto(photoId, new Callback<Photo>(...
How to make Java honor the DNS Caching Timeout?
We use GSLB for geo-distribution and load-balancing. Each service is assigned a fixed domain name. Through some DNS magic, the domain name is resolved into an IP that's closest to the server with least load. For the load-balancing to work, the application server needs to honor the TTL from DNS respo...
What is the result of % in Python?
What does the % in a calculation? I can't seem to work out what it does.
19 Answers
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Spring DAO vs Spring ORM vs Spring JDBC
...gh data access technologies supported by Spring, and I noticed that it mentions multiple options and I am not sure about the difference among them:
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how to programmatically fake a touch event to a UIButton?
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It turns out that
[buttonObj sendActionsForControlEvents: UIControlEventTouchUpInside];
got me exactly what I needed, in this case.
EDIT: Don't forget to do this in the main thread, to get results similar to a user-press.
For Swift 3:
buttonObj.sendActio...
How to access accelerometer/gyroscope data from Javascript?
... the accelerometer or gyroscope on my laptop, detecting changes in orientation or movement.
4 Answers
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What is tail recursion?
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Consider a simple function that adds the first N natural numbers. (e.g. sum(5) = 1 + 2 + 3 + 4 + 5 = 15).
Here is a simple JavaScript implementation that uses recursion:
function recsum(x) {
if (x === 1) {
return x;
} else {
...
What does Redis do when it runs out of memory?
This might be easy question but I am having a hard time finding the answer. How does Redis 2.0 handle running out of maximum allocated memory? How does it decide which data to remove or which data to keep in memory?
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Get folder name from full file path
How do I get the folder name from the full path of the application?
11 Answers
11
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