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javascript regex - look behind alternative?
... int not preceded by unsigned:
With support for negative look-behind:
(?<!unsigned )int
Without support for negative look-behind:
((?!unsigned ).{9}|^.{0,8})int
Basically idea is to grab n preceding characters and exclude match with negative look-ahead, but also match the cases where there...
How can I determine the direction of a jQuery scroll event?
...
Check current scrollTop vs previous scrollTop
var lastScrollTop = 0;
$(window).scroll(function(event){
var st = $(this).scrollTop();
if (st > lastScrollTop){
// downscroll code
} else {
// upscroll code
}
lastSc...
URL matrix parameters vs. query parameters
...a whole. This comes into play when making a complex REST-style query to multiple levels of resources and sub-resources:
http://example.com/res/categories;name=foo/objects;name=green/?page=1
It really comes down to namespacing.
Note: The 'levels' of resources here are categories and objects.
I...
How to make ThreadPoolExecutor's submit() method block if it is saturated?
...ecutor and a blockingQueue:
public class ImageManager {
BlockingQueue<Runnable> blockingQueue = new ArrayBlockingQueue<Runnable>(blockQueueSize);
RejectedExecutionHandler rejectedExecutionHandler = new ThreadPoolExecutor.CallerRunsPolicy();
private ExecutorService executorSe...
Deserialize json object into dynamic object using Json.net
... Microsoft.CSharp.RuntimeBinder.RuntimeBinderException occurred HResult=-2146233088 Message='Newtonsoft.Json.Linq.JObject' does not contain a definition for 'number' Source=Microsoft.CSharp StackTrace: at Microsoft.CSharp.RuntimeBinder.RuntimeBinderController.SubmitError(C...
Android Emulator: Installation error: INSTALL_FAILED_VERSION_DOWNGRADE
...to determine the version number for the installed app, and increment your <manifest android:versionCode to be higher in the AndroidManifest.
or https://stackoverflow.com/a/13772620/632951
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Does bit-shift depend on endianness?
...n have a value in a vector register and a shift will produce different results on little-endian and big-endian.
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How to sort in-place using the merge sort algorithm?
...
void wmerge(Key* xs, int i, int m, int j, int n, int w) {
while (i < m && j < n)
swap(xs, w++, xs[i] < xs[j] ? i++ : j++);
while (i < m)
swap(xs, w++, i++);
while (j < n)
swap(xs, w++, j++);
}
It takes the array xs, the two sorted sub...
SQL - find records from one table which don't exist in another
... Call
WHERE phone_number NOT IN (SELECT phone_number FROM Phone_book)
alternatively (thanks to Alterlife)
SELECT *
FROM Call
WHERE NOT EXISTS
(SELECT *
FROM Phone_book
WHERE Phone_book.phone_number = Call.phone_number)
or (thanks to WOPR)
SELECT *
FROM Call
LEFT OUTER JOIN P...
java.lang.ClassNotFoundException: Didn't find class on path: dexpathlist
...
I tried all possible options but result is zero. Finally i found correct solution which is helpful for me. Just go to disable Instant Run Go to File -> Settings -> Build,Execution, Deployment -> Instant Run -> Uncheck the checkbox for instant run. Ru...