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Why is creating a Thread said to be expensive?
... executed within the JVM thread in the OS. They are not often used, to my knowledge.
The biggest factor I can think of in the thread-creation overhead, is the stack-size you have defined for your threads. Thread stack-size can be passed as a parameter when running the VM.
Other than that, thread ...
How to remove all namespaces from XML with C#?
...te static XElement RemoveAllNamespaces(XElement xmlDocument)
{
if (!xmlDocument.HasElements)
{
XElement xElement = new XElement(xmlDocument.Name.LocalName);
xElement.Value = xmlDocument.Value;
foreach (XAttribute attribute in xmlDocument.Attri...
Generate a random double in a range
...
This question was asked before Java 7 release but now, there is another possible way using Java 7 (and above) API:
double random = ThreadLocalRandom.current().nextDouble(min, max);
nextDouble will return a pseudorandom double value between the minimum (inclusive) and the ...
Truncating floats in Python
...float f to n decimal places without rounding'''
s = '{}'.format(f)
if 'e' in s or 'E' in s:
return '{0:.{1}f}'.format(f, n)
i, p, d = s.partition('.')
return '.'.join([i, (d+'0'*n)[:n]])
This is valid in Python 2.7 and 3.1+. For older versions, it's not possible to get the ...
onCreateOptionsMenu inside Fragments
...
it won't be called if you don't add this line: setHasOptionsMenu(true);
– Yoann Hercouet
Sep 21 '13 at 10:01
10
...
If a DOM Element is removed, are its listeners also removed from memory?
...
Older browsers
Older browsers - specifically older versions of IE - are known to have memory leak issues due to event listeners keeping hold of references to the elements they were attached to.
If you want a more in-depth explanation of the causes, patterns and solutions used to fix legacy IE ve...
Is it possible to change the textcolor on an Android SearchView?
...pose it publicly.
int id = searchView.getContext().getResources().getIdentifier("android:id/search_src_text", null, null);
TextView textView = (TextView) searchView.findViewById(id);
textView.setTextColor(Color.WHITE);
sha...
Form inside a form, is that alright? [duplicate]
...
This is good to know. I've implemented it in the past with custom data attributes and javascript when I could have just included a html5 shim library.
– Jon Hulka
Mar 22 '17 at 18:10
...
CSS table layout: why does table-row not accept a margin?
...e;
border-spacing: 15px;
}
.row {
display: table-row;
}
.home_1 {
width: 64px;
height: 64px;
padding-right: 20px;
margin-right: 10px;
display: table-cell;
}
.home_2 {
width: 350px;
height: 64px;
padding: 0px;
vertical-align: middle;
font-size: 150%;
...
How to catch curl errors in PHP
...
You can use the curl_error() function to detect if there was some error. For example:
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $your_url);
curl_setopt($ch, CURLOPT_FAILONERROR, true); // Required for HTTP error codes to be reported via our call to curl_error($ch)
...