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Random alpha-numeric string in JavaScript? [duplicate]
What's the shortest way (within reason) to generate a random alpha-numeric (uppercase, lowercase, and numbers) string in JavaScript to use as a probably-unique identifier?
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Why aren't pointers initialized with NULL by default?
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We all realize that pointer (and other POD types) should be initialized.
The question then becomes 'who should initialize them'.
Well there are basically two methods:
The compiler initializes them.
The developer initializes them.
Let us assume tha...
Problems with pip install numpy - RuntimeError: Broken toolchain: cannot link a simple C program
I'm trying to install numpy (and scipy and matplotlib) into a virturalenv.
11 Answers
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Android 4.2: back stack behaviour with nested fragments
With Android 4.2, the support library got support for nested fragments see here . I've played around with it and found an interesting behaviour / bug regarding back stack and getChildFragmentManager() . When using getChildFragmentManager() and addToBackStack(String name), by pressing the back butt...
How to configure XAMPP to send mail from localhost?
...d mail from localhost.
for example you can configure C:\xampp\php\php.ini and c:\xampp\sendmail\sendmail.ini for gmail to send mail.
in C:\xampp\php\php.ini find extension=php_openssl.dll and remove the semicolon from the beginning of that line to make SSL working for gmail for localhost.
in php....
Turn a number into star rating display using jQuery and CSS
I have been looking at jquery plugin and was wondering how to adapt that plugin to turn a number (like 4.8618164) into a 4.8618164 stars filled out of 5. Basically interpreting a number
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Why is === faster than == in PHP?
...nverts, the data type temporarily to see if it’s equal to the other operand, whereas === (the identity operator) doesn’t need to do any converting whatsoever and thus less work is done, which makes it faster.
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What kind of Garbage Collection does Go use?
...ine
CPU cores dedicated to running the concurrent collector
tri-color mark-and-sweep algorithm
non-generational
non-compacting
fully precise
incurs a small cost if the program is moving pointers around
lower latency, but most likely also lower throughput, than Go 1.3 GC
Go 1.3 garbage collector up...
What does the CSS rule “clear: both” do?
...th; OR what does clear: both; exactly do...
I'll keep this answer simple, and to the point, and will explain to you graphically why clear: both; is required or what it does...
Generally designers float the elements, left or to the right, which creates an empty space on the other side which allows ...
Hide grid row in WPF
... // Don't need any convert back
return null;
}
}
And then in the appropriate view <Grid.RowDefinition>:
<RowDefinition Height="{Binding IsHiddenRow, Converter={StaticResource BoolToGridRowHeightConverter}}"></RowDefinition>
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