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Can I run multiple versions of Google Chrome on the same machine? (Mac or Windows)
...Also extract this file, and descend the created Chrome-bin
directory. Now, you see chrome.exe and a dir like 18.0.1025.45.
Move chrome.exe to 18.0.1025.45, then move this directory to
C:\Chrome. The remaining files in Chrome-bin can safely be
deleted.
Create a shortcut for each version:...
parseInt(null, 24) === 23… wait, what?
...isn't a base-24 numeric string in entirety, but "n" is: it's decimal 23.
Now, parsing stops after the decimal 23 is pulled out, because "u" isn't found in the base-24 system:
If S contains any character that is
not a radix-R digit, then let Z be the
substring of S consisting of all
chara...
How to load/edit/run/save text files (.py) into an IPython notebook cell?
...
EDIT: Starting from IPython 3 (now Jupyter project), the notebook has a text editor that can be used as a more convenient alternative to
load/edit/save text files.
A text file can be loaded in a notebook cell with the magic command %load.
If you execu...
Understanding Python super() with __init__() methods [duplicate]
..."UserDependency init'ed")
super(UserDependency, self).__init__()
Now remember, ChildB uses super, ChildA does not:
class UserA(ChildA, UserDependency):
def __init__(self):
print("UserA init'ed")
super(UserA, self).__init__()
class UserB(ChildB, UserDependency):
de...
How to pass the values from one activity to previous activity
.... Shared Preferences
Suppose you want to store username. So there will be now two thing a Key Username, Value Value.
How to store
// Create object of SharedPreferences.
SharedPreferences sharedPref = PreferenceManager.getDefaultSharedPreferences(this);
//now get Editor
SharedPreferences.Edito...
while (1) vs. while(True) — Why is there a difference (in python 2 bytecode)?
... 0 (True)
6 BINARY_ADD
9 RETURN_VALUE
Now compare:
>>> dis.dis('1 + 1')
1 0 LOAD_CONST 1 (2)
3 RETURN_VALUE
It's emitting a LOAD_GLOBAL (True) for each True, and there's nothing the optimizer can do with a globa...
How to customize a Spinner in Android
... effect... working on it on/off for last 3-4 days.. Just getting irritated now :(
– 7bluephoenix
Jun 28 '13 at 12:01
...
The case against checked exceptions
For a number of years now I have been unable to get a decent answer to the following question: why are some developers so against checked exceptions? I have had numerous conversations, read things on blogs, read what Bruce Eckel had to say (the first person I saw speak out against them).
...
Postgres unique constraint vs index
...(ind_id)=(0) already exists.
test=#
It works as expected!
Foreign keys
Now we'll define detail table with two foreign keys referencing to our two columns in master.
create table detail (
con_id integer,
ind_id integer,
constraint detail_fk1 foreign key (con_id) references master(con...
Sprintf equivalent in Java
... string rather than a file (which is what sprintf does in C). Does anyone know how to do this?
5 Answers
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