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How to convert a double to long without casting?
...e happy with truncating towards zero, just cast:
double d = 1234.56;
long x = (long) d; // x = 1234
This will be faster than going via the wrapper classes - and more importantly, it's more readable. Now, if you need rounding other than "always towards zero" you'll need slightly more complicated c...
How do I serialize a C# anonymous type to a JSON string?
...tting used in many new Microsoft frameworks, including MVC. aspnet.codeplex.com/SourceControl/changeset/view/21528#266491
– Nick Berardi
Mar 29 '09 at 1:13
1
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How do I use ROW_NUMBER()?
... row_number() over (order by id) as rownum
from table_name
)
select max(rownum) from temp
To get the row numbers where name is Matt:
with temp as (
select name, row_number() over (order by id) as rownum
from table_name
)
select rownum from temp where name like 'Matt'
You can further ...
Delete all rows in an HTML table
How can I delete all rows of an HTML table except the <th> 's using Javascript, and without looping through all the rows in the table? I have a very huge table and I don't want to freeze the UI while I'm looping through the rows to delete them
...
What are bitwise shift (bit-shift) operators and how do they work?
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The bit shifting operators do exactly what their name implies. They shift bits. Here's a brief (or not-so-brief) introduction to the different shift operators.
The Operators
>> is the arithmetic (or signed) right shift operator.
>>> is t...
Is a Python list guaranteed to have its elements stay in the order they are inserted in?
...te elements and has a defined order that generally does not change unless explicitly made to do so. stacks and queues are both types of lists that provide specific (often limited) behavior for adding and removing elements (stacks being LIFO, queues being FIFO). Lists are practical representations of...
Setting PayPal return URL and making it auto return?
...g in to your PayPal account at https://www.paypal.com or https://www.sandbox.paypal.com
The My Account Overview page appears.
Click the gear icon top right.
The Profile Summary page appears.
Click the My Selling Preferences link in the left column.
Under the Selling Online section, click...
UIGestureRecognizer on UIImageView
...
userInteractionEnabled still must be set to YES/true in Xcode 8 Objective-C/Swift
– leanne
Sep 5 '17 at 19:19
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show 2 mo...
PHP - Check if two arrays are equal
I'd like to check if two arrays are equal. I mean: same size, same index, same values. How can I do that?
15 Answers
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How to compile a 64-bit application using Visual C++ 2010 Express?
...le way to compile a 64 bit app with the 32-bit edition of Visual C++ 2010 Express? What configurations, if any, are necessary?
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