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Test if a class has an attribute?
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@Marc- I agree about that the difference in performance would probably not be noticeable in a unit test. I'd get the attribute if I needed to use it, which as you say is the scenario in most cases. I recently used IsDefined in a framework I was writing to exclude a column...
iOS 7: UITableView shows under status bar
...ibrary.
I disagree with everyone who is trying to solve this by using any form of "Magic Numbers" e.g. "use a delta of 20px". This kind of tightly coupled programming is definitely not what Apple wants us to do here.
I have discovered two solutions to this problem:
Preserving the UITableViewCont...
String concatenation vs. string substitution in Python
...itution eludes me. As the string concatenation has seen large boosts in performance, is this (becoming more) a stylistic decision rather than a practical one?
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Get lengths of a list in a jinja2 template
... Thanks @AlexMartelli. In addition we could use inline syntax like {{ form.select_field(size=5 if form.select_field.choices|count > 5 else form.select_field.choices|count) }}
– Filipe Bezerra de Sousa
Jun 28 at 23:52
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How do I get a UTC Timestamp in JavaScript?
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The easiest way of getting UTC time in a conventional format is as follows:
new Date().toISOString()
"2016-06-03T23:15:33.008Z"
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How do I pass a unique_ptr argument to a constructor or a function?
...lways passes unique_ptr values by rvalue reference (for instance when transforming them into shared_ptr). The rationale for that might be that it is slightly more efficient (no moving to temporary pointers is done) while it gives the exact same rights to the caller (may pass rvalues, or lvalues wrap...
How can I make the tabs work normally on Xcode 4?
... tab means you now have to worry about getting the environment back in the form you need it, because there's a good chance the other tab wasn't left in the state you expect to find it in. This actually discourages the use of tabs because it introduces more work in the workflow.
File tabs don't have...
is there a require for json in node.js
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well formed json helps too
– sdeburca
May 14 '15 at 9:44
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URL Fragment and 302 redirects
...fragment identifiers in redirected URLs" [RURL]. The
term "Persistent Uniform Resource Locator (PURL)" designates a URL (a
special case of a URI) that points to another one through an HTTP
redirect. For more information, refer to "Persistent Uniform Resource
Locators" [PURL]. Example:
S...
Why do some websites add “Slugs” to the end of URLs? [closed]
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I recently changed my website url format from:
www.mywebsite.com/index.asp?view=display&postid=100
To
www.mywebsite.com/this-is-the-title-of-the-post
and noticed that click through rates to article increased about 300% after the change. It cer...