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How to check if current thread is not main thread
...eturn null if the thread is not associated with a Looper. So both are safe and have the same result but the first one is a little bit slower while it searches inside a map to find out the looper and its associated thread and do some other stuff .
– Saeed Masoumi
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Internet Explorer 11 detection
...t && !!document.documentMode;
// true on IE11
// false on Edge and other IEs/browsers.
Original Answer
In order to check Ie11 , you can use this : ( tested)
(or run this)
!(window.ActiveXObject) && "ActiveXObject" in window
I have all VMS of IE :
Notice : this w...
Difference between volatile and synchronized in Java
... am wondering at the difference between declaring a variable as volatile and always accessing the variable in a synchronized(this) block in Java?
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“inconsistent use of tabs and spaces in indentation”
I'm trying to create an application in Python 3.2 and I use tabs all the time for indentation, but even the editor changes some of them into spaces and then print out "inconsistent use of tabs and spaces in indentation" when I try to run the program.
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Why is textarea filled with mysterious white spaces?
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Look closely at your code. In it, there are already three line breaks, and a ton of white space before </textarea>. Remove those first so that there are no line breaks in between the tags any more. It might already do the trick.
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Git command to display HEAD commit id?
What command can I use to print out the commit id of HEAD?
9 Answers
9
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How to convert current date into string in java?
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Used a combination of this and the answer right below for the timestring. C:
– php_coder_3809625
Jul 13 '16 at 13:54
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How to center a (background) image within a div?
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If you want the entire div to be filled with the image and no extra space you should use background-size: cover; If you want the entire image to show without any part of the image being cut off or stretched you want to use background-size: contain;
– Zlerp...
What does “:=” do?
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It's the assignment operator in Pascal and is often used in proofs and pseudo-code. It's the same thing as = in C-dialect languages.
Historically, computer science papers used = for equality comparisons and ← for assignments. Pascal used := to stand in for the ...
gcc warning" 'will be initialized after'
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@Eloff In some cases (not recommendable), b and a initialisation might depend on each other. A naive user might try to alter the initialisation order to get some effect and the Warning would make it clear that it doesn't work.
– Gorpik
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