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Converting HTML files to PDF [closed]
I need to automatically generate a PDF file from an exisiting (X)HTML-document. The input files (reports) use a rather simple, table-based layout, so support for really fancy JavaScript/CSS stuff is probably not needed.
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Why doesn't the height of a container element increase if it contains floated elements?
...t and float work. I have an outer div and an inner div that has content in it. Its height may vary depending on the content of the inner div but it seems that my inner div will overflow its outside div. What would be the proper way to do it?
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Database development mistakes made by application developers [closed]
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1. Not using appropriate indices
This is a relatively easy one but still it happens all the time. Foreign keys should have indexes on them. If you're using a field in a WHERE you should (probably) have an index on it. Such indexes should often cover multiple columns based on the queries you nee...
HTML 5 tag vs Flash video. What are the pros and cons?
This question was made over 9 years ago. It made sense then, it doesn't make it now. Flash is hard on its way out; <video> support is ubiquitous, including mobile devices. Almost anything that Flash could do, HTML can now do too. HTML won, Flash lost. If you're pondering on how to embed vide...
The Use of Multiple JFrames: Good or Bad Practice? [closed]
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I'm just wondering whether it is good practice to use multiple JFrames?
Bad (bad, bad) practice.
User unfriendly: The user sees multiple icons in their task bar when expecting to see only one. Plus the side effects of the coding problems..
A nig...
Objective-C categories in static library
...go to the application that is linking against the library (not the library itself) and click the project in the Project Navigator, click your app's target, then build settings, then search for "Other Linker Flags", click the + button, and add '-ObjC'. '-all_load' and '-force_load' are no longer need...
JavaScript style for optional callbacks
... functions which occasionally (not always) will receive a callback and run it. Is checking if the callback is defined/function a good style or is there a better way?
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Is it correct to use alt tag for an anchor link?
Is it correct to use alt tag for an anchor link, something like
7 Answers
7
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How do you build a Singleton in Dart?
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Thanks to Dart's factory constructors, it's easy to build a singleton:
class Singleton {
static final Singleton _singleton = Singleton._internal();
factory Singleton() {
return _singleton;
}
Singleton._internal();
}
You can construct it like this
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Batch file to copy files from one folder to another folder
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xcopy.exe is definitely your friend here.
It's built into Windows, so its cost is nothing.
Just xcopy /s c:\source d:\target
You'd probably want to tweak a few things; some of the options we also add include these:
/s/e - recursive copy, i...