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How do I make JavaScript beep?
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It's not possible to do directly in JavaScript. You'll need to embed a short WAV file in the HTML, and then play that via code.
An Example:
<script>
function PlaySound(soundObj) {
var sound = document.getElementById(soundObj);
sound.Play();
}
<...
What is the apply function in Scala?
I never understood it from the contrived unmarshalling and verbing nouns ( an AddTwo class has an apply that adds two!) examples.
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Decreasing height of bootstrap 3.0 navbar
I am trying to decrease bootstrap 3.0 navbar height which is used with fixed top behavior. Here i am using code.
9 Answers
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Declaration of Methods should be Compatible with Parent Methods in PHP
What are possible causes of this error in PHP? Where can I find information about what it means to be compatible ?
5 Answe...
postgresql COUNT(DISTINCT …) very slow
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You can use this:
SELECT COUNT(*) FROM (SELECT DISTINCT column_name FROM table_name) AS temp;
This is much faster than:
COUNT(DISTINCT column_name)
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C# version of java's synchronized keyword?
...safe. Use YAGNI: only apply thread-safety when you know you actually are going to use it (and test it).
For the method-level stuff, there is [MethodImpl]:
[MethodImpl(MethodImplOptions.Synchronized)]
public void SomeMethod() {/* code */}
This can also be used on accessors (properties and events)...
How do I update zsh to the latest version?
I recently switched to zsh on my Terminal.app on my OS X machine successfully. The version number of zsh is 4.3.11.
6 Answe...
Contributing to project on github, how to “rebase my pull request on top of master”
Ok so I an contributing to a project on github. The project on github is upstream , my forked repo on github is origin , and my local repo on my computer.
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Finding the handle to a WPF window
Windows forms had a property win1.Handle which, if I recall, returns the handle of the main window handle?
4 Answers
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How to see which flags -march=native will activate?
I'm compiling my C++ app using GCC 4.3. Instead of manually selecting the optimization flags I'm using -march=native , which in theory should add all optimization flags applicable to the hardware I'm compiling on. But how can I check which flags is it actually using?
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