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How to reuse an ostringstream?
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I'm not seeing the failing behavior on VS2012. Furthermore, calling clear will cause the failbit to be set if the stream is empty. While just calling seekp should simply return if no stream exists.
– Jonathan Mee
Jul 8 '14 at...
What is q=0.5 in Accept* HTTP headers?
...t to be based on the quality of the encoding. Consider, for instance, FLAC vs MP3. You could say something like: "Send me the MP3 version if it at worst is 50% of the quality of the lossless version. If it isn't, send me the FLAC version." How to quantify such quality, and whether that is used in pr...
doGet and doPost in Servlets
...TRING environment variable will be empty.
Advantages/Disadvantages of GET vs. POST
Advantages of the GET method:
Slightly faster
Parameters can be entered via a form or by appending them after the URL
Page can be bookmarked with its parameters
Disadvantages of the GET method:
Can only send 4K wo...
Parse a .py file, read the AST, modify it, then write back the modified source code
...]))])"
Notice the difference in syntax for print statement in Python 2.7 vs. Python 3.5 and the difference in type of AST node in respective trees.
How to modify code using ast:
Now, let's a have a look at an example of modification of python code by ast module. The main tool for modifying AST...
Why is char[] preferred over String for passwords?
... document, the Java Cryptography Architecture guide says this about char[] vs. String passwords (about password-based encryption, but this is more generally about passwords of course):
It would seem logical to collect and store the password in an object
of type java.lang.String. However, here'...
What's the difference between identifying and non-identifying relationships?
..., respectively.
See also my answer to Still Confused About Identifying vs. Non-Identifying Relationships
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How to change webservice url endpoint?
...posed to change it. More importantly, from an environment to another (test vs live), the endpoint url is likely to change.. and nobody wants to tweak the wsdl and recompile in this case.
– Myobis
Dec 16 '13 at 9:56
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Which is better, number(x) or parseFloat(x)?
...s performance difference is browser dependant.
http://jsperf.com/parseint-vs-parsefloat/6
Have a look at these jsPerf results, and make you're call. (it includes +x tests as well)
As noted in @xdazz 's answer, +"" and Number("") return 0 while parseFloat("") returns NaN so Again I would go with p...
Mapping composite keys using EF code first
... more information.
1) https://msdn.microsoft.com/en-us/library/jj591617(v=vs.113).aspx
2) How to add a composite unique key using EF 6 Fluent Api?
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Calling shell functions with xargs
...mments :-(
I was wondering about the focus on
bash -c 'echo_var "$@"' _ {}
vs
bash -c 'echo_var "{}"'
The 1st substitutes the {} as an arg to bash while the 2nd as an arg to the function. The fact that example 1 doesn't expand the $(date) is simply a a side effect.
If you don't want the functions a...