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Using multiple let-as within a if-statement in Swift
...two values from a dictionary and before using them I have to cast them and test for the right type. This is what I came up with:
...
Get generic type of class at runtime
... @Dominik Please see the updated example that you can copy and paste to test yourself. I've also added a note clarifying that you must instantiate a subclass (as shown). As a general etiquette advise, please read any linked articles and related javadocs before you accuse a poster of "wishful thin...
What are the differences in die() and exit() in PHP?
...
Just tested it and exit and die work the same way, they both close connection.
– Grzegorz Adam Kowalski
Feb 12 at 23:29
How to exclude a module from a Maven reactor build?
...ild environment, we created a profile quick that disables many plugins and test execution.
This is done by
<profile>
<id>quick</id>
<properties>
<skipTests>true</skipTests>
<!-- others... -->
</proper...
What's the difference between echo, print, and print_r in PHP?
...t know exactly what values/types you have in your variables. Consider this test program:
$values = array(0, 0.0, false, '');
var_dump($values);
print_r ($values);
With print_r you can't tell the difference between 0 and 0.0, or false and '':
array(4) {
[0]=>
int(0)
[1]=>
float(0)
...
Submitting HTML form using Jquery AJAX
... $.post documentation.
Example: Send form data using ajax requests
$.post("test.php", $("#testform").serialize());
Example: Post a form using ajax and put results in a div
<!DOCTYPE html>
<html>
<head>
<script src="http://code.jquery.com/jquery-1.9.1.js"></scr...
Is there a way to create your own html tag in HTML5?
... agree, writing your own tags is not for the faint of heart. Make sure you test it thoroughly. I would like to say one thing though... don't write CSS for IE6. Completely waste of resources and enables further use of such a horrible product that not even Microsoft endorses.
– T...
Rename specific column(s) in pandas
... about the same (though YMMV depending on your data set and scenario). The test case below is to rename columns A M N Z to A2 M2 N2 Z2 in a dataframe with columns A to Z containing a million rows.
# Import required modules
import numpy as np
import pandas as pd
import timeit
# Create sample data
d...
Any gotchas using unicode_literals in Python 2.6?
...t 'DEBUG: %s' % html
Output:
Traceback (most recent call last):
File "test.py", line 6, in <module>
print 'DEBUG: %s' % html
UnicodeDecodeError: 'ascii' codec can't decode byte 0xc3 in position 16: ordinal not in range(128)
It fails because 'DEBUG: %s' is an unicode string and there...
Why does int i = 1024 * 1024 * 1024 * 1024 compile without error?
...hought of, considered to be a good idea, designed, specified, implemented, tested, documented and shipped to users.
For Java, one or more of the things on that list did not happen, and therefore you don't have the feature. I don't know which one; you'd have to ask a Java designer.
For C#, all of t...