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Do DOM tree elements with ids become global variables?
...ts’ are added as apparent properties of the document object. This is a really bad idea, as it allows element names to clash with real properties of document.
IE made the situation worse by also adding named elements as properties of the window object. This is doubly bad in that now you have to av...
What is the purpose of the HTML “no-js” class?
...f/else statement in your CSS code. For example, .myclass { /* CSS code for all versions of your page goes here */ }, .js .myclass { /* This CSS code will only show up if JS is enabled */ } and .no-js .myclass { /* This CSS code will only show up if JS is disabled. */ }. Hope this helps. -Nick
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What are the differences between type() and isinstance()?
...identity of types and rejects instances of subtypes, AKA subclasses).
Normally, in Python, you want your code to support inheritance, of course (since inheritance is so handy, it would be bad to stop code using yours from using it!), so isinstance is less bad than checking identity of types because...
How to format current time using a yyyyMMddHHmmss format?
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acturally the golang format is very strange. why not use the yyyymmddHHiiss style , but use the ""2006/01/02/15/04/05", I have not get it the real reason
– Kewin
May 10 '16 at 14:32
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data.table vs dplyr: can one do something well the other can't or does poorly?
...j and by together is by design. By keeping related operations together, it allows to easily optimise operations for speed and more importantly memory usage, and also provide some powerful features, all while maintaining the consistency in syntax.
1. Speed
Quite a few benchmarks (though mostly on g...
Wait until a process ends
...Responding that went to false after closing the window like that:
while (!_process.HasExited && _process.Responding) {
Thread.Sleep(100);
}
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Perhaps this helps someone.
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What are the advantages of using a schema-free database like MongoDB compared to a relational databa
...ire several tables to properly represent in a relational db. This is especially useful if your data is immutable.
Deep query-ability. MongoDB supports dynamic queries on documents using a document-based query language that's nearly as powerful as SQL.
No schema migrations. Since MongoDB is schema-...
Most efficient T-SQL way to pad a varchar on the left to a certain length?
...ecause you are dealing with a fixed length).
But as I said you should really avoid doing this in your database.
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Draw on HTML5 Canvas using a mouse
... trying to use this code, but have issues with the drawing being off vertically when I'm not scrolled all the way down on the page. What should I change in this code?
– Cameron Darlington
Dec 11 '14 at 22:13
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Django: Display Choice Value
...ing your information via JSON (for instance in a pagination scenario)? Ideally without the overhead of instantiating the Models one by one and calling get_field_display().
– DylanYoung
Mar 23 '17 at 17:34
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