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setTimeout in for-loop does not print consecutive values [duplicate]
...vident over the fact that setting up a few timeouts causes the handlers to all fire at the same time. It's important to understand that the process of setting up the timer — the calls to setTimeout() — take almost no time at all. That is, telling the system, "Please call this function after 1000...
What is the volatile keyword useful for?
...
volatile has semantics for memory visibility. Basically, the value of a volatile field becomes visible to all readers (other threads in particular) after a write operation completes on it. Without volatile, readers could see some non-updated value.
To answer your question: Y...
Why does this code using random strings print “hello world”?
...gorithms are specified for the class Random. Java implementations must use all the algorithms shown here for the class Random, for the sake of absolute portability of Java code."
– FThompson
Aug 27 '13 at 3:05
...
How to mock localStorage in JavaScript unit tests?
...Each(function () {
var store = {};
spyOn(localStorage, 'getItem').andCallFake(function (key) {
return store[key];
});
spyOn(localStorage, 'setItem').andCallFake(function (key, value) {
return store[key] = value + '';
});
spyOn(localStorage, 'clear').andCallFake(function () {
...
What are POD types in C++?
...pod<MyType>() to tell whether MyType is POD.
– allyourcode
Mar 31 '14 at 21:24
7
Bjarne Str...
Binding arrow keys in JS/jQuery
...n't propagate to them), and at the end of the switch, will return without calling e.preventDefault() if it's any other key than the ones being looked for to not hinder other key usage, and instead of $.ui.keyCode.DOWN it compares to the numbers (MUCH faster).
– Jimbo Jonny
...
How to implement static class member functions in *.cpp file?
...
If you define it in the class body, it will automatically be default. If it's in the header outside the class body, it had better be marked either inline or template or you'll get multiple definition errors from the linker.
– Ben Voigt
Ma...
Get the POST request body from HttpServletRequest
... that we cannot read the request body again as getReader has already been called.
– Nikhil Sahu
Jan 6 '17 at 16:08
1
...
Is there a PHP Sandbox, something like JSFiddle is to JS? [closed]
... most sophisticated is:
http://3v4l.org/
It lets you test your code in all PHP versions starting from PHP4.
If you want something for your local environment, the Runkit extension aims to provide a PHP Sandbox:
Instantiating the Runkit_Sandbox class creates a new thread with its own scope an...
Lock screen orientation (Android) [duplicate]
... android:configChanges=... line prevents onResume(), onPause() from being called when the screen is rotated. Without this line, the rotation will stay as you requested but the calls will still be made.
Note: keyboardHidden and orientation are required for < Android 3.2 (API level 13), and all th...