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How to get 0-padded binary representation of an integer in java?
... zeros, but this is very costly at runtime, as in:
String.format("%016d", new BigInteger(Integer.toBinaryString(1)))
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'Contains()' workaround using Linq to Entities?
... IEnumerable<TValue> collection
)
{
if (selector == null) throw new ArgumentNullException("selector");
if (collection == null) throw new ArgumentNullException("collection");
if (!collection.Any())
return query.Where(t => false);
ParameterExpression p = selector.Parameters.S...
Best way to check if object exists in Entity Framework?
...manage a scenario where the percentage of duplicates being provided in the new data records was very high, and so many thousands of database calls were being made to check for duplicates (so the CPU sent a lot of time at 100%). In the end I decided to keep the last 100,000 records cached in memory....
builder for HashMap
Guava provides us with great factory methods for Java types, such as Maps.newHashMap() .
15 Answers
...
HTML.ActionLink vs Url.Action in ASP.NET Razor
...or example:
@Html.ActionLink("link text", "someaction", "somecontroller", new { id = "123" }, null)
generates:
<a href="/somecontroller/someaction/123">link text</a>
and Url.Action("someaction", "somecontroller", new { id = "123" }) generates:
/somecontroller/someaction/123
Ther...
RESTful password reset
..., which in this case is reset_password. It is like saying "Create (POST) a new reset_password action for {user_name}".
Previous answer:
I would go for something like this:
PUT /users/:user_id/attributes/password
-- The "current password" and the "new password" passed through the body
You'...
Adding dictionaries together, Python [duplicate]
...
If you're interested in creating a new dict without using intermediary storage: (this is faster, and in my opinion, cleaner than using dict.items())
dic2 = dict(dic0, **dic1)
Or if you're happy to use one of the existing dicts:
dic0.update(dic1)
...
Blocks on Swift (animateWithDuration:animations:completion:)
...lf.blurBg.alpha = 1
}, completion: {
(value: Bool) in
self.blurBg.hidden = true
})
The important part here is the (value: Bool) in. That tells the compiler that this closure takes a Bool labeled 'value' and returns void.
For reference, if you wanted to write a closure that returned a bool...
Insert, on duplicate update in PostgreSQL?
...his can be achieved using a writeable CTE (common table expression):
WITH new_values (id, field1, field2) as (
values
(1, 'A', 'X'),
(2, 'B', 'Y'),
(3, 'C', 'Z')
),
upsert as
(
update mytable m
set field1 = nv.field1,
field2 = nv.field2
FROM new_valu...
How can I play sound in Java?
...v format.
public static synchronized void playSound(final String url) {
new Thread(new Runnable() {
// The wrapper thread is unnecessary, unless it blocks on the
// Clip finishing; see comments.
public void run() {
try {
Clip clip = AudioSystem.getClip();
AudioInputS...