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Benefits of using the conditional ?: (ternary) operator
...
A really cool usage is:
x = foo ? 1 :
bar ? 2 :
baz ? 3 :
4;
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Rails Console: reload! not reflecting changes in model files? What could be possible reason?
... method on an object. Eg, if you change the definition of the class method foo(), then in the console a.foo will not use the new definition unless you first reload a.
– jpw
Jun 12 '13 at 0:29
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How to implement __iter__(self) for a container object (Python)
...bind your object's iter to, you can cheat and do this:
>>> class foo:
def __init__(self, *params):
self.data = params
def __iter__(self):
if hasattr(self.data[0], "__iter__"):
return self.data[0].__iter__()
return self.data.__iter__()
>>...
Getting only response header from HTTP POST using curl
...wer that this command always fails. curl -svo. <url> && echo foo won’t print foo because -o. make curl return a non-zero (= error) code: curl: (23) Failed writing body.
– bfontaine
Jul 19 '19 at 14:20
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Using union and order by clause in mysql
...g on a join plus union.
(SELECT
table1.column1,
table1.column2,
foo1.column4
FROM table1, table2, foo1, table5
WHERE table5.somerecord = table1.column1
ORDER BY table1.column1 ASC, table1.column2 DESC
)
UNION
(SELECT
... Another complex query as above
)
ORDER BY column1 DESC, co...
How can I use UUIDs in SQLAlchemy?
...m flask_sqlalchemy import SQLAlchemy
import uuid
db = SQLAlchemy()
class Foo(db.Model):
# id = db.Column(db.Integer, primary_key=True)
id = db.Column(UUID(as_uuid=True), primary_key=True, default=uuid.uuid4, unique=True, nullable=False)
Be careful not to miss passing the callable uuid.uu...
Why is it OK to return a 'vector' from a function?
...tion symbol.
So the label or ptr array_ptr === array label thus returning foo[offset] is really saying return element at memory pointer location foo + offset of type return type.
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Java Hashmap: How to get key from value?
If I have the value "foo" , and a HashMap<String> ftw for which ftw.containsValue("foo") returns true , how can I get the corresponding key? Do I have to loop through the hashmap? What is the best way to do that?
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Ways to synchronize interface and implementation comments in C# [closed]
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/// </remarks>
public void MethodImplementingInterfaceMethod(string foo, int bar)
{
//
}
Here is the help page from the Sandcastle Help File Builder GUI, which describes its usage in full.
(Of course, this isn't specifically "synchronisation", as your question mentions, but it would se...
How do I pass a string into subprocess.Popen (using the stdin argument)?
...ccepts a bytes argument:
output = subprocess.check_output(
["sed", "s/foo/bar/"],
input=b"foo",
)
This works for check_output and run, but not call or check_call for some reason.
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