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Creating a new empty branch for a new project
...sing a git repository to store our project. We have our branches departing from the original branch. But now we want to create a small new project to track some documentation. For that we would want to create a new empty branch to start storing our files, and I would want other users of the network ...
How to debug a Flask app
...r=False), or point it at the venv/bin/flask script and use it as you would from the command line. You can leave the reloader disabled, but a reload will kill the debugging context and you will have to catch a breakpoint again.
You can also use pdb, pudb, or another terminal debugger by calling set_...
Difference between “and” and && in Ruby?
...
From Andrew Marshall's link: "Another way of thinking about and is as a reversed if statement modifier: next if widget = widgets.pop becomes widget = widgets.pop and next. That's a great way of putting it, really made it "cli...
How to instantiate non static inner class within a static method?
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If you want to create new Inner() from within a method, do it from an instance method of the class MyClass:
public void main(){
Inner inner = new Inner();
}
public static void main(String args[]){
new MyClass().main();
}
...
How to list all the files in a commit?
... If you want it to work on the root commit, use the --root flag. From the man page: "When --root is specified the initial commit will be shown as a big creation event. This is equivalent to a diff against the NULL tree."
– Chris
Sep 23 '13 at 18:26
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What's the point of const pointers?
...t for some cases such as loop variables where const would prevent the code from working).
Note that this makes only sense in the definition of a function. It doesn’t belong in the declaration, which is what the user sees. And the user doesn’t care whether I use const for parameters inside the f...
Where is body in a nodejs http.get response?
...ecause they were Buffer objects containing raw data. If you wanted strings from them you could also use chunk.toString(), optionally passing toString and encoding. That said, setEncoding is likely more efficient.
– skeggse
Dec 17 '13 at 19:13
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What are bitwise operators?
...hen dealing with different sizes of data. For example, reading an integer from four bytes:
int val = (A << 24) | (B << 16) | (C << 8) | D;
Assuming that A is the most-significant byte and D the least. It would end up as:
A = 01000000
B = 00000101
C = 00101011
D = 11100011
val...
calculating the difference in months between two dates
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You won't be able to get that from a TimeSpan, because a "month" is a variable unit of measure. You'll have to calculate it yourself, and you'll have to figure out how exactly you want it to work.
For example, should dates like July 5, 2009 and August 4...
How do you get the “object reference” of an object in java when toString() and hashCode() have been
...the object into an integer" not a gurantee, but the default implementation from Sun. Things like s = "Hello" and t = "Hello" would probably result in s and t having the same identityHashCode as they really are the same object.
– TofuBeer
Feb 24 '09 at 15:23
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