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Why do we need break after case statements?
...t an example.
In my experience, usually it is bad style to "fall through" and have multiple blocks of code execute for one case, but there may be uses for it in some situations.
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How to set the authorization header using curl
...n
HTTP Authentication is the ability to tell the server your username and
password so that it can verify that you're allowed to do the request you're
doing. The Basic authentication used in HTTP (which is the type curl uses by
default) is plain text based, which means it sends username...
Convert string to Python class object?
... open to anything. If you have malicious, evil users who might maliciously and evilly pass bad values to eval, they can just edit the python source. Since they can just edit the python source, the door is, was, and always will be open.
– S.Lott
Sep 19 '13 at 12...
Java dynamic array sizes?
...e it needs to grow in size. When it does you'll have to allocate a new one and copy the data from the old to the new:
int[] oldItems = new int[10];
for (int i = 0; i < 10; i++) {
oldItems[i] = i + 10;
}
int[] newItems = new int[20];
System.arraycopy(oldItems, 0, newItems, 0, 10);
oldItems = ...
Having links relative to root?
...te the W3's example:
For example, given the following BASE declaration and A declaration:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"
"http://www.w3.org/TR/html4/strict.dtd">
<HTML>
<HEAD>
<TITLE>Our Products</TITLE>
<BASE href="http://www.aviar...
How can I create an array with key value pairs?
...row = array($row["datasource_id"]=>$row["title"]);
inside while loop, and then use array_merge function in loop to combine the each new $new_row array.
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iOS app error - Can't add self as subview
...r pop) a view controller with Animated:YES it doesn't complete right away, and bad things happen if you do another push or pop before the animation completes. You can easily test whether this is indeed the case by temporarily changing your Push and Pop operations to Animated:NO (so that they complet...
Running multiple commands with xargs
In the example above, xargs takes echo % as the command argument. But in some cases, I need multiple commands to process the argument instead of one. For example:
...
PHP array_filter with arguments
... page. The idea is that you create an object with the desired state ($num) and the callback method (taking $i as an argument):
class LowerThanFilter {
private $num;
function __construct($num) {
$this->num = $num;
}
function isLower($i) {
...
Most efficient way to concatenate strings?
...ike:
x = f1(...) + f2(...) + f3(...) + f4(...)
that's one concat and it's zippy, StringBuilder probably won't help.
If your pattern looks like:
if (...) x += f1(...)
if (...) x += f2(...)
if (...) x += f3(...)
if (...) x += f4(...)
then you probably want StringBuil...