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Sort rows in data.table in decreasing order on string key `order(-x,v)` gives error on data.table 1.
...om%2fquestions%2f12353820%2fsort-rows-in-data-table-in-decreasing-order-on-string-key-order-x-v-gives-er%23new-answer', 'question_page');
}
);
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How can I get enum possible values in a MySQL database?
...
You can get the values by querying it like this:
SELECT SUBSTRING(COLUMN_TYPE,5)
FROM information_schema.COLUMNS
WHERE TABLE_SCHEMA='databasename'
AND TABLE_NAME='tablename'
AND COLUMN_NAME='columnname'
From there you'll need to convert it into an array:
eval that direct...
How to write a test which expects an Error to be thrown in Jasmine?
...ah).toThrow(). No arguments means check to see that it throws at all. No string matching required. See also: stackoverflow.com/a/9525172/1804678
– Jess
Nov 27 '13 at 14:32
1
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Convert interface{} to int
...oth complex types.
x is an integer or a slice of bytes or runes and T is a string type.
x is a string and T is a slice of bytes or runes.
But
iAreaId := int(val)
is not any of the cases 1.-7.
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How can I use interface as a C# generic type constraint?
...e T : IBase;
public interface IBase { }
public interface IActual : IBase { string S { get; } }
public class Actual : IActual { public string S { get; set; } }
Now there's nothing stopping you from calling Foo thus:
Foo<Actual>();
The Actual class, after all, satisfies the IBase constraint...
How do I merge two dictionaries in a single expression in Python (taking union of dictionaries)?
...frozensets or tuples), but this method fails in Python 3 when keys are not strings.
>>> c = dict(a, **b)
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
TypeError: keyword arguments must be strings
From the mailing list, Guido van Rossum, the creator of...
Default value in Doctrine
...can use:
<?php
/**
* @Entity
*/
class myEntity {
/**
* @var string
*
* @Column(name="myColumn", type="string", length="50")
*/
private $myColumn = 'myDefaultValue';
...
}
PHP-level default values are preferred as these are also properly available on newly crea...
Covariance, Invariance and Contravariance explained in plain English?
...ovariant, contravariant, or invariant? Covariant would mean that a List<String> is a subtype of List<Object>, contravariant that a List<Object> is a subtype of List<String> and invariant that neither is a subtype of the other, i.e. List<String> and List<Object> ar...
Detect Safari browser
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Doesn't work. Currently outputting chrome UA string on iPhone and it doesn't even have the word "chrome" in it.
– Paul Carlton
Jul 1 '14 at 22:59
6
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How can I determine if a JavaScript variable is defined in a page? [duplicate]
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you are checking if x = a string, not if x is undefined.
– FlySwat
Sep 26 '08 at 23:02
1
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