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What is the purpose of a self executing function in javascript?
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It's all about variable scoping. Variables declared in the self executing function are, by default, only available to code within the self executing function. This allows code to be written without concern of how variables are nam...
How to read data when some numbers contain commas as thousand separator?
...u can have read.table or read.csv do this conversion for you semi-automatically. First create a new class definition, then create a conversion function and set it as an "as" method using the setAs function like so:
setClass("num.with.commas")
setAs("character", "num.with.commas",
function(...
Pandas: Looking up the list of sheets in an excel file
...eet_names attribute):
xl = pd.ExcelFile('foo.xls')
xl.sheet_names # see all sheet names
xl.parse(sheet_name) # read a specific sheet to DataFrame
see docs for parse for more options...
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Search text in stored procedure in SQL Server
I want to search a text from all my database stored procedures. I use the below SQL:
22 Answers
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Can I squash commits in Mercurial?
I have a pair of commits that should really be just one. If I was using git, I would use:
8 Answers
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Package doesn't exist error in intelliJ
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I tried to "Maven > Reimport" but the only thing that actually fixed it was to close the project, delete the .idea directory, and reopen the project.
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How do I show my global Git configuration?
I'd like to show all configured Git sections.
12 Answers
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Running shell command and capturing the output
...True at the end of this answer.
The check_output function works on almost all versions of Python still in wide use (2.7+).2 But for more recent versions, it is no longer the recommended approach.
Modern versions of Python (3.5 or higher): run
If you're using Python 3.5 or higher, and do not need ...
PostgreSQL: Show tables in PostgreSQL
...terface,
First, choose your database
\c database_name
Then, this shows all tables in the current schema:
\dt
Programmatically (or from the psql interface too, of course):
SELECT * FROM pg_catalog.pg_tables;
The system tables live in the pg_catalog database.
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Codesign error: Certificate identity appearing twice
...same problem.
It has been fixed.
It came after I submitted an app and installed a few certificates to sign the app.
Quick Fix:
Open up KEYCHAIN ACCESS > click on MY CERTIFICATES> in there you will probably see
iPhone Developer: . You will probably see it TWICE!
Select the one with the earl...