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Create or write/append in text file
...reated. If it exists, it is neither truncated (as opposed to 'w'), nor the call to this function fails (as is the case with 'x'). 'c+' Open the file for reading and writing; otherwise it has the same behavior as 'c'.
Additionally, and in PHP 7.1.2 the 'e' option was added that can be combined ...
How to extract the file name from URI returned from Intent.ACTION_GET_CONTENT?
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In your fallback, you could simply call uri.getLastPathSegment() instead of parsing it yourself.
– Grishka
Sep 16 at 18:15
add a commen...
SQL Server Linked Server Example Query
...ious things that would cause SQL server to have to load the entire table locally. For example using GETDATE() or even certain joins. Others performance killers include not giving appropriate rights.
See http://thomaslarock.com/2013/05/top-3-performance-killers-for-linked-server-queries/ for some ...
d3 axis labeling
...ate a chart axis via d3.svg.axis() function you have access to two methods called tickValues and tickFormat which are built-in inside the function so that you can specifies which values you need the ticks for and in what format you want the text to appear:
var formatAxis = d3.format(" 0");
var axi...
When is JavaScript's eval() not evil?
...ler. If your code is compiled, then this is a big hit, because you need to call a possibly-heavy compiler in the middle of run-time. However, JavaScript is still mostly an interpreted language, which means that calling eval() is not a big performance hit in the general case (but see my specific rema...
How to write asynchronous functions for Node.js
... difference is that they are not executed immediately but passed around as callbacks.
How should I implement error event handling correctly
Generally API's give you a callback with an err as the first argument. For example
database.query('something', function(err, result) {
if (err) handle(...
Linq: adding conditions to the where clause conditionally
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If you do not call ToList() and your final mapping to the DTO type, you can add Where clauses as you go, and build the results at the end:
var query = from u in DataContext.Users
where u.Division == strUserDiv
&& u.Age >...
How to use subprocess popen Python
... value, to be filled by untrusted user supplied data. But I am prepared to call a truce on that item. My point was more that there is no reason not to use shell=True except when using untrusted input. Simply stating that shell=True is not recommended is misleading.
– Hans Then
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How do I remove the blue styling of telephone numbers on iPhone/iOS?
...u need to do is treat the telephone number as a link as Apple will automatically set it as one.
your HTML
<p id="phone-text">Call us on <strong>+44 (0)20 7194 8000</strong></p>
your css
#phone-text a{color:#fff; text-decoration:none;}
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How do I do a not equal in Django queryset filtering?
... seem right. I just tried this myself, and the order of exclude and filter calls didn't make any meaningful difference. The order of the conditions in the WHERE clause changes, but how does that matter?
– coredumperror
Apr 7 '16 at 19:51
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