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String formatting in Python 3
...x. An example would be:
"({:d} goals, ${:d})".format(self.goals, self.penalties)
If both goals and penalties are integers (i.e. their default format is ok), it could be shortened to:
"({} goals, ${})".format(self.goals, self.penalties)
And since the parameters are fields of self, there's also ...
How to index characters in a Golang string?
...als are character sequences between double quotes "" using the (possibly multi-byte) UTF-8 encoding of individual characters. In UTF-8, ASCII characters are single-byte corresponding to the first 128 Unicode characters. Strings behave like slices of bytes. A rune is an integer value identifying a Un...
What is the most frequent concurrency issue you've encountered in Java? [closed]
...though they are declared completely disparately from each other.) The result is obviously bad.
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Creating functions in a loop
...change def f(): to def f(i=i): like this:
def f(i=i):
return i
Default values (the right-hand i in i=i is a default value for argument name i, which is the left-hand i in i=i) are looked up at def time, not at call time, so essentially they're a way to specifically looking for early binding.
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do..end vs curly braces for blocks in Ruby
... that I should not use do..end and instead use curly braces for defining multiline blocks in Ruby.
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How do I do a bulk insert in mySQL using node.js
...,') + ') VALUES ?';
connection.query(sql, [values], function (error, results, fields) {
if (error) callback(error);
callback(null, results);
});
}
bulkInsert(connection, 'my_table_of_objects', objectArray, (error, response) => {
if (error) res.send(error);
res.json(response);
});...
Trigger a keypress/keydown/keyup event in JS/jQuery?
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If you need Ctrl: ctrlKey: true, also: shiftKey, altKey
– Илья Зеленько
Dec 6 '18 at 15:44
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Get name of caller function in PHP?
... The original array will be modified and this should give the required result echo 'called by '.$trace[0]['function']
– GoodSp33d
Jun 20 '12 at 7:44
22
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Capture keyboardinterrupt in Python without try-except
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An alternative to setting your own signal handler is to use a context-manager to catch the exception and ignore it:
>>> class CleanExit(object):
... def __enter__(self):
... return self
... def __exi...
Host 'xxx.xx.xxx.xxx' is not allowed to connect to this MySQL server
...T ALL PRIVILEGES ON *.* TO 'monty'@'%'
-> WITH GRANT OPTION;
Although as Pascal and others have noted it's not a great idea to have a user with this kind of access open to any IP. If you need an administrative user, use root, and leave it on localhost. For any other action specify exact...