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Which is better, number(x) or parseFloat(x)?
...umber". Number returns NaN while parseFloat parses "as much as it can". If called on the empty string Number returns 0 while parseFloat returns NaN.
For example:
Number("") === 0 // also holds for false
isNaN(parseFloat("")) === true // and null
isNaN(Number("32f")) === true
parseFl...
How to see query history in SQL Server Management Studio
...ight tracing filtered on your login or host name (but please use a server-side trace, not Profiler, for this).
As @Nenad-Zivkovic commented, it might be helpful to join on sys.dm_exec_query_stats and order by last_execution_time:
SELECT t.[text], s.last_execution_time
FROM sys.dm_exec_cached_pla...
Create web service proxy in Visual Studio from a WSDL file
...a URL property you can set on the fly, and a bunch of methods that you can call. It'll also generate classes for all/any complex objects passed across the service interface.
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java.lang.IllegalStateException: The specified child already has a parent
...ootView.getParent()).removeView(mRootView);" works in contrast to directly calling " <WhateverIsParentViewGroupName>.removeView(mRootView)" But this works for me as well, I'm testing on Android 8.0 and 9.0. Thanks bud ^
– Khay
Feb 16 '19 at 1:33
...
Convert PDF to clean SVG? [closed]
..."
FOR /f "tokens=*" %%A IN ('DIR /A:-D /O:N /B %_work_file_str%') DO (
CALL :subroutine "%%A"
)
popd
:: ===== CONVERT PDF TO SVG WITH INKSCAPE =====
:subroutine
echo.
IF NOT [%1]==[] (
echo %count%:%1
set /A count+=1
start "" /D "%_work_dir%" /W "%_inkscape_cmd%" --without-gui --...
关于php的socket初探 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...t($socket, -1)) { // 这样设置不超时才油用
static $id = 0;
static $ct = 0;
$ct_last = $ct;
$ct_data = '';
$buffer = '';
$id++; // increase on each accept
echo "Client $id come./n";
...
Linq code to select one item
...use the extension methods directly like:
var item = Items.First(i => i.Id == 123);
And if you don't want to throw an error if the list is empty, use FirstOrDefault which returns the default value for the element type (null for reference types):
var item = Items.FirstOrDefault(i => i.Id == ...
How to determine equality for two JavaScript objects?
...ata and method is blurred.
An object may reference a method that is to be called as an event handler, and this would likely not be considered part of its 'value state'. Whereas another object may well be assigned a function that performs an important calculation and thereby makes this instance diff...
Why is HttpClient BaseAddress not working?
...n
any "/" characters).
If relative URI starts with a slash, it is called a absolute-path relative URI. In this case merge procedure ignore all base URI path. For more information check 5.2.2. Transform References section.
...
How can I convert this foreach code to Parallel.ForEach?
... Just wanted to point it out (more for the OP) so that there wasn't a misguided thought that it only works on List<T> ;)
– Reed Copsey
Sep 3 '12 at 17:21
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