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How can I ensure that a division of integers is always rounded up?
...integer that is greater than the quotient, that is, it always rounds up.
Now we have a specification, so we know we can come up with a testable design. Suppose we add an additional design criterion that the problem be solved solely with integer arithmetic, rather than computing the quotient as a ...
jQuery $(“#radioButton”).change(…) not firing during de-selection
...s question went unanswered. Sadly, I’m running into the same situation now.
9 Answers
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Convert a PHP script into a stand-alone windows executable
...ritten a small PHP script which I run from the command line using PHP-CLI. Now I want to hand over this script to someone but I do not want to:
...
PDO Prepared Inserts multiple rows in single query
...bably have a loop that populates data.
With prepared inserts you need to know the fields you're inserting to, and the number of fields to create the ? placeholders to bind your parameters.
insert into table (fielda, fieldb, ... ) values (?,?...), (?,?...)....
That is basically how we want the in...
How to check whether a script is running under Node.js?
...re and B: The modules exports things via properties on the exports object. Now how that is implement is left to the underlying system. Node.js wraps the module's content in an anonymous function:
function (exports, require, module, __filename, __dirname) {
See: https://github.com/ry/node/blob/ma...
How to allocate aligned memory only using the standard library?
...impossibly badly aligned pointer: 0x800001. Adding the 16 gives 0x800011. Now I want to round down to the 16-byte boundary — so I want to reset the last 4 bits to 0. 0x0F has the last 4 bits set to one; therefore, ~0x0F has all bits set to one except the last four. Anding that with 0x800011 giv...
Default filter in Django admin
...otes... it requires Django 1.4, though, although that should be a given by now.
– Simon
May 16 '13 at 21:58
@Greg How ...
Positive Number to Negative Number in JavaScript?
...
@PhilipRollins i * -1 will work, always. i don't know how you tried, maybe you had some typo. But... what's wrong with i = -i instead of i = i * -1 (or i *= -1) to reverse positive to negative or negative to positive?
– Diego ZoracKy
A...
How do I parse JSON with Objective-C?
...f the OS X v10.7 and iOS 5 launches, probably the first thing to recommend now is NSJSONSerialization, Apple's supplied JSON parser. Use third-party options only as a fallback if you find that class unavailable at runtime.
So, for example:
NSData *returnedData = ...JSON data, probably from a web r...
Prevent any form of page refresh using jQuery/Javascript
...d tab correctly. For example, maybe I have one window open, then close it. Now I open a new window. You would likely detect that as a second tab, even though I already closed the first one. Now your user can't access the first window because they closed it, and they can't access the second window be...