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Expression Versus Statement
...something") was enshrined in syntax: one kind of phrase was an expression, and another was a statement, and the parser could tell them apart.
Designers of later languages blurred the distinction: they allowed syntactic expressions to do things, and they allowed syntactic statements that had values....
How to strip all whitespace from string
...egex is cached, so it's not as slow as you'd imagine. Compiling it beforehand helps some, but would only matter in practice if you call this many times:
$ python -m timeit -s 'import re; e = re.compile(r"\s+")' 'e.sub("", " \t foo \n bar ")'
100000 loops, best of 3: 7.76 usec per loop
Even thoug...
List all environment variables from the command line
Is it possible to list all environment variables from a Windows' command prompt?
8 Answers
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Correct way to remove plugin from Eclipse
...pping into the dropins folder, then just delete it from the dropins folder and restart Eclipse.
See the answer of @Cogentleman for more recent versions of Eclipse.
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Placing an image to the top right corner - CSS
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Position the div relatively, and position the ribbon absolutely inside it. Something like:
#content {
position:relative;
}
.ribbon {
position:absolute;
top:0;
right:0;
}
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append multiple values for one key in a dictionary [duplicate]
I am new to python and I have a list of years and values for each year. What I want to do is check if the year already exists in a dictionary and if it does, append the value to that list of values for the specific key.
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C++ template typedef
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Oh great, I hadn't seen this part of C++0x and I've been bitching about templated typedef for a while... guess I should have a more thorough read of the final draft.
– Matthieu M.
May 9 '10 at 11:19
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Create a temporary table in a SELECT statement without a separate CREATE TABLE
...only) table from a select statement without using a create table statement and specifying each column type? I know derived tables are capable of this, but those are super-temporary (statement-only) and I want to re-use.
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How to install psycopg2 with “pip” on Python?
I'm using virtualenv and I need to install "psycopg2".
33 Answers
33
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How can I see the SQL generated by Sequelize.js?
I want to see the SQL commands that are sent to the PostgreSQL server because I need to check if they are correct. In particular, I am interested in the table creation commands.
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