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创建自定义 TinyWebDB 服务 · App Inventor 2 中文网
...multi-player games).
By default, the TinyWebDB component stores data on a test service provided by App Inventor, http://tinywebdb.appinventor.mit.edu/ . This service is helpful for testing, but it is shared by all App Inventor users, and it has a limit of 1000 entries. If you use it, your data will...
hexadecimal string to byte array in python
...@Hubro Actually, hex_string.decode("hex") is working on Python 2.7. I just tested on my Python 2.7.10 (default, May 23 2015, 09:44:00) [MSC v.1500 64 bit (AMD64)] on win32.
– MewX
Oct 22 '17 at 1:10
...
How to get Enum Value from index in Java?
...}
import static junit.framework.Assert.assertEquals;
import org.junit.Test;
public class MonthsTest {
@Test
public void test_indexed_access() {
assertEquals(Months.MONTHS_INDEXED[1], Months.JAN);
assertEquals(Months.MONTHS_INDEXED[2], Months.FEB);
assertEquals(Months.byOrdinal(1)...
Grep regex NOT containing string
...xpression), so the command is:
grep -P '(?<!1\.2\.3\.4).*Has exploded' test.log
Try this. It uses negative lookbehind to ignore the line if it is preceeded by 1.2.3.4. Hope that helps!
share
|
...
“Notice: Undefined variable”, “Notice: Undefined index”, and “Notice: Undefined offset” using PHP
...alse';
echo ' ' . (empty($v) ? 'true' : 'false');
echo "\n";
});
Test the above snippet in the 3v4l.org online PHP editor
Although PHP does not require a variable declaration, it does recommend it in order to avoid some security vulnerabilities or bugs where one would forget to give a val...
How do I set the figure title and axes labels font size in Matplotlib?
... import pyplot as plt
fig = plt.figure()
plt.plot(data)
fig.suptitle('test title', fontsize=20)
plt.xlabel('xlabel', fontsize=18)
plt.ylabel('ylabel', fontsize=16)
fig.savefig('test.jpg')
For globally setting title and label sizes, mpl.rcParams contains axes.titlesize and axes.labelsize. (Fro...
Hidden features of HTML
...s code and results for links from this page.
Regular Anchor:
<a href="test.html">Click here</a>
Leads to
www.anypage.com/folder/subfolder/test.html
Now if you add base tag
<base href="http://www.anypage.com/" />
<a href="test.html">Click here</a>
The anchor n...
JavaFX Application Icon
...
Updated for JavaFX 8
No need to change the code. It still works fine. Tested and verified in Java 1.8(1.8.0_45). Path can be set to local or remote both are supported.
stage.getIcons().add(new Image("/path/to/javaicon.png"));
OR
stage.getIcons().add(new Image("https://example.com/javaicon.p...
Measure elapsed time in Swift
...e(nanoTime) / 1_000_000_000 // Technically could overflow for long running tests
print("Time to evaluate problem \(problemNumber): \(timeInterval) seconds")
return theAnswer
}
Old answer
For Swift 1 and 2, my function uses NSDate:
// Swift 1
func evaluateProblem(problemNumber: Int, proble...
How can I trigger an onchange event manually? [duplicate]
...nnet: interesting. I'm working in Linux at the moment and can't switch to test for a solution, but I would suggest swapping the if and else blocks, and testing for if ('createEvent' in document) instead. Let me know if this works and I'll update the answer.
– Andy E
...