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Is SecureRandom thread safe?
Is SecureRandom thread safe? That is, after initializing it, can access to the next random number be relied on to be thread safe? Examining the source code seems to show that it is, and this bug report seems to indicate that its lack of documentation as thread safe is a javadoc issue. Has anyone...
jQuery append() vs appendChild()
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The main difference is that appendChild is a DOM method and append is a jQuery method. The second one uses the first as you can see on jQuery source code
append: function() {
return this.domManip(arguments, true, function( elem ) {
if ( this.nodeType === 1 || this.nod...
Why can I not push_back a unique_ptr into a vector?
...d Aug 15 '16 at 17:11
parker.sikand
1,3131414 silver badges2929 bronze badges
answered Jul 19 '10 at 18:15
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How can I get a list of build targets in Ant?
...ts without having to search through the file manually. Does ant have a command for this - something like ant show-targets - that will make it list all the targets in the build file?
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multiple definition of template specialization when using different objects
... in different object files (ie. in this case it is instantiated in other.c and main.c) but the original object itself is defined only in one file - in this case hello.h.
– Justin Liang
Apr 8 '15 at 17:02
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Converting an integer to a hexadecimal string in Ruby
...ase other than 10:
10.to_s(16) #=> "a"
Note that in ruby 2.4 FixNum and BigNum were unified in the Integer class.
If you are using an older ruby check the documentation of FixNum#to_s and BigNum#to_s
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Adding a directory to $LOAD_PATH (Ruby)
...y because I've seen much more usage of it in code than the $LOAD_PATH one, and it's shorter too!
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What is the function of the DBMDL File in VS database project
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From what I can make out, it is a serialized file of your db model and is used as a cache for improving the performance of deployment. It is unique per user thus should not be checked into source control.
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How to check if a string is a valid JSON string in JavaScript without using Try/Catch
...t, read the answer below.
Here we just check a JSON string using a regexp, and it will work in most cases, not all cases.
Have a look around the line 450 in https://github.com/douglascrockford/JSON-js/blob/master/json2.js
There is a regexp that check for a valid JSON, something like:
if (/^[\],:{...
How do I implement interfaces in python?
...cessary in Python. This is because Python has proper multiple inheritance, and also ducktyping, which means that the places where you must have interfaces in Java, you don't have to have them in Python.
That said, there are still several uses for interfaces. Some of them are covered by Pythons Abst...