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Is there a “null coalescing” operator in JavaScript?
...king a value for null and it happens to be "" it won't correctly pass this test.
– ScottKoon
Aug 27 '10 at 21:53
102
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Clone Object without reference javascript [duplicate]
...rray so for..in is a better choice in this case. Also, there is no need to test source[prop], why not copy falsey properties?
– RobG
Oct 2 '12 at 12:25
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Reading Excel files from C#
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This way is by far the fastest.
– StingyJack
Jan 19 '09 at 14:06
17
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How to use redis PUBLISH/SUBSCRIBE with nodejs to notify clients when data values change?
...cal/bin:$PATH' >> ~/.bashrc
. ~/.bashrc
mkdir ~/local
mkdir ~/node-latest-install
cd ~/node-latest-install
curl http://nodejs.org/dist/node-latest.tar.gz | tar xz --strip-components=1
./configure --prefix=~/local
make install # ok, fine, this step probably takes more than 30 seconds...
curl ht...
Build tree array from flat array in javascript
...It doesn't require a 3rd-party library. It's, as far as I can tell, the fastest solution.
function list_to_tree(list) {
var map = {}, node, roots = [], i;
for (i = 0; i < list.length; i += 1) {
map[list[i].id] = i; // initialize the map
list[i].children = []; // initialize the ...
Generate random numbers following a normal distribution in C/C++
...ion is not guaranteed to be consistent across all platforms. I'm doing the tests now, and MSVC provides a different set of values from, for example, Clang. The C++11 engines seem to generate the same sequences (given the same seed), but the C++11 distributions seem to be implemented using different ...
PHP - how to best determine if the current invocation is from CLI or web server?
...rder to introduce $_GET variables: php-cgi myscript.php arg1=one arg2=two. Testing for not equal to apache2handler should be ok for apache.
– Sebastian
Jun 12 '13 at 1:01
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Intent - if activity is running, bring it to front, else start a new one (from notification)
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well I am testing it right now and it does. If I remove all the intent flags and just set the launchMode="singleInstance" in the manifest, the weird animation is there, if I remove it, its back to normal
– urSus
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Do you debug C++ code in Vim? How? [closed]
...ult to set up, but it looks well though out and promising. I just did some tests and you could set bookmarks, etc., the usual stuff you would expect from a graphical debugger. I ended up not using it for contingent reasons but I am keen to give it another try.
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How to make a Java thread wait for another thread's output?
....ExecutorService;
import java.util.concurrent.Executors;
import org.junit.Test;
public class ThreadTest {
public void print(String m) {
System.out.println(m);
}
public class One implements Callable<Integer> {
public Integer call() throws Exception {
...