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How to write asynchronous functions for Node.js
...back(val);
});
};
The above function when called as
async_function(42, function(val) {
console.log(val)
});
console.log(43);
Will print 42 to the console asynchronously. In particular process.nextTick fires after the current eventloop callstack is empty. That call stack is empty after asy...
How to check if a function exists on a SQL database
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208
This is what SSMS uses when you script using the DROP and CREATE option
IF EXISTS (SELECT *
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How to upgrade Eclipse for Java EE Developers?
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answered Jun 27 '13 at 7:55
Duncan JonesDuncan Jones
55.8k2222 gold badges157157 silver badges218218 bronze badges
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Install MySQL on Ubuntu without a password prompt
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432
sudo debconf-set-selections <<< 'mysql-server mysql-server/root_password password your_...
What's a standard way to do a no-op in python?
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291
Use pass for no-op:
if x == 0:
pass
else:
print "x not equal 0"
And here's another exam...
How do I remove the passphrase for the SSH key without having to create a new key?
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2034
Short answer:
$ ssh-keygen -p
This will then prompt you to enter the keyfile location, the...
How do you delete all text above a certain line
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edited Mar 22 '18 at 10:20
Rich
14.8k1414 gold badges7272 silver badges120120 bronze badges
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How many concurrent AJAX (XmlHttpRequest) requests are allowed in popular browsers?
...imum.
IE6, IE7 - have a limit of two. IE8 is 6 if you have a broadband - 2 (if it's a dial up).
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MySql Table Insert if not exist otherwise update
...x for MySQL:
INSERT INTO AggregatedData (datenum,Timestamp)
VALUES ("734152.979166667","2010-01-14 23:30:00.000")
ON DUPLICATE KEY UPDATE
Timestamp=VALUES(Timestamp)
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