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What are the most-used vim commands/keypresses?
I'm a Ruby programming trying to switch from Textmate to MacVim, and I'm having trouble wading through the gargantuan lists of things you can do in VIM and all of the keypresses for them. I'm tired of hearing "You can use 'I' for inserting text, or 'a' for appending text after the character, or 'A' ...
git: Your branch is ahead by X commits
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Bravo. That was really the issue. I started by creating a repository on google code. Then I cloned this repository on my laptop and I do work there and push the changes, laptop => code.google. I used to get this message on my server where I had created a clone of co...
What's the difference between => , ()=>, and Unit=>
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Call-by-Name: => Type
The => Type notation stands for call-by-name, which is one of the many ways parameters can be passed. If you aren't familiar with them, I recommend taking some time to read that wikipedia article, even...
how can I Update top 100 records in sql server
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Any idea how to use the order by as well?
– Joe Phillips
Feb 27 '13 at 18:30
8
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How do I Sort a Multidimensional Array in PHP [duplicate]
...ORT_DESC, $mdarray);
For PHP >= 5.5.0 just extract the column to sort by. No need for the loop:
array_multisort(array_column($mdarray, 0), SORT_DESC, $mdarray);
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A regex to match a substring that isn't followed by a certain other substring
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To match a foo following by something that doesn't start with bar, try
foo(?!bar)
Your version with negative lookbehind is effectively "match a foo followed by something that doesn't end in bar". The .* matches all of barblah, and the (?<!bar) ...
Why not use Double or Float to represent currency?
...rs are different, but a very simple way to think about them is to multiply by a power of two instead. For instance, you could be looking at 164 * 2-4 (an integer times a power of two), which is also equal to 10.25. That's not how the numbers are represented in memory, but the math implications are t...
How do I select an entire row which has the largest ID in the table?
...want one such row, use @MichaelMior's answer,
SELECT row from table ORDER BY id DESC LIMIT 1
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In JavaScript, why is “0” equal to false, but when tested by 'if' it is not false by itself?
...ean context, it converts to number, and in the case of strings that's done by parsing as decimal. So you get Number 0 instead of the truthiness boolean true.
This is a really poor bit of language design and it's one of the reasons we try not to use the unfortunate == operator. Use === instead.
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Dump a mysql database to a plaintext (CSV) backup from the command line
...e real CSV files:
SELECT * INTO OUTFILE 'table.csv'
FIELDS TERMINATED BY ',' OPTIONALLY ENCLOSED BY '"'
LINES TERMINATED BY '\n'
FROM table
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