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How to check if a number is a power of 2
...Let us for the sake of simplicity assume that someone has passed the value 4 and called the function like so:
bool b = IsPowerOfTwo(4)
Now we replace each occurrence of x with 4:
return (4 != 0) && ((4 & (4-1)) == 0);
Well we already know that 4 != 0 evals to true, so far so good. ...
How to get notified about changes of the history via history.pushState?
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14 Answers
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Why would I prefer using vector to deque
...ackOverflow, there is more good discussion here: http://www.gotw.ca/gotw/054.htm .
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When should I use uuid.uuid1() vs. uuid.uuid4() in python?
...nique across computers.
You can create duplicates by creating more than 214 uuid1 in less than 100ns, but this is not a problem for most use cases.
uuid4() generates, as you said, a random UUID. The chance of a collision is really, really, really small. Small enough, that you shouldn't worry about...
How do I get the current time only in JavaScript
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var d = new Date("2011-04-20T09:30:51.01");
d.getHours(); // => 9
d.getMinutes(); // => 30
d.getSeconds(); // => 51
or
var d = new Date(); // for now
d.getHours(); // => 9
d.getMinutes(); // => 30
d.getSeconds(); // => 51
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How to show current time in JavaScript in the format HH:MM:SS?
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104
function checkTime(i) {
if (i < 10) {
i = "0" + i;
}
return i;
}
functi...
Executing injected by innerHTML after AJAX call
...esnt work from partial can you help with this? stackoverflow.com/questions/42941856/…
– Samra
Mar 23 '17 at 5:07
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How to load JAR files dynamically at Runtime?
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edited Jan 8 '19 at 11:41
Konrad Rudolph
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Controlling the screenshot in the iOS 7 multitasking switcher
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edited Jul 14 '19 at 21:57
answered Sep 23 '13 at 14:19
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How can you use optional parameters in C#?
... at a time when C# did not yet support optional parameters (i.e. before C# 4).
23 Answers
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