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Python Dictionary to URL Parameters
...nverts it into a form suitable for a URL (e.g., key1=val1&key2=val2).
If you are using Python3, use urllib.parse.urlencode()
If you want to make a URL with repetitive params such as: p=1&p=2&p=3 you have two options:
>>> import urllib
>>> a = (('p',1),('p',2), ('p', ...
Can I catch multiple Java exceptions in the same catch clause?
... catch (IOException | SQLException ex) {
...
}
Remember, though, that if all the exceptions belong to the same class hierarchy, you can simply catch that base exception type.
Also note that you cannot catch both ExceptionA and ExceptionB in the same block if ExceptionB is inherited, either dir...
How do I UPDATE from a SELECT in SQL Server?
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If you are editing the the link between tables (SET Table.other_table_id = @NewValue) then change the ON statement to something like ON Table.id = @IdToEdit AND other_table.id = @NewValue
– Trisped
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is there a Java equivalent to null coalescing operator (??) in C#? [duplicate]
...(x != null) ? x : -1;
Of course, you can wrap this up in library methods if you feel the need to (it's unlikely to cut down on length much), but at the syntax level there isn't anything more succinct available.
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Should I embed images as data/base64 in CSS or HTML
...page or style sheet get loaded.
Base64 encoding bloats image sizes by 33%.
If served in a gzipped resource, data: images are almost certainly going to be a terrible strain on the server's resources! Images are traditionally very CPU intensive to compress, with very little reduction in size.
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What is the difference between `new Object()` and object literal notation?
What is the difference between this constructor-based syntax for creating an object:
11 Answers
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Query an XDocument for elements by name at any depth
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How would you tackle this if an element name was duplicated within an xml document? For example: If the xml contained a collection of <Cars> with sub elements of <Part>, and also a collection of <Planes> with sub elements of <Part...
Fastest method of screen capturing on Windows
...e GDI, but I'm curious whether there are other ways to go about this, and, if there are, which incurs the least overhead? Speed is a priority.
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Read a file one line at a time in node.js?
...);
});
The last line is read correctly (as of Node v0.12 or later), even if there is no final \n.
UPDATE: this example has been added to Node's API official documentation.
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In which order do CSS stylesheets override?
....w3.org/TR/2011/REC-CSS2-20110607/cascade.html#cascade
In short: more specific rules override more general ones. Specificity is defined based on how many IDs, classes, and element names are involved, as well as whether the !important declaration was used. When multiple rules of the same "specificit...