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Scala: What is the difference between Traversable and Iterable traits in Scala collections?
...ersables don't.
A Traversable has one abstract method: foreach. When you call foreach, the collection will feed the passed function all the elements it keeps, one after the other.
On the other hand, an Iterable has as abstract method iterator, which returns an Iterator. You can call next on an Ite...
Naming convention for utility classes in Java
... you use it consistently. Like, if you have three utility classes and you call them CustomerUtil, ProductUtils, and StoreUtility, other people trying to use your classes are going to constantly get confused and type CustomerUtils by mistake, have to look it up, curse you a few times, etc. (I heard a...
GitHub: Reopening a merged pull request
...l need to add commits to the branch and create a new pull request, copying all the details over and probably providing a link to the original pull request to manually save the history.
Might be a nice feature request for future GitHub.
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do you have kcachegrind like profiling tools for mac [closed]
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I ended up using qcachegrind on OSX. It can be installed via brew
brew install qcachegrind
or, to enable graphviz support:
brew install qcachegrind --with-graphviz
What's great about this program is that I successfully loaded a 6.1GB cachegrind file on my MacBook Pro! P...
Is this a “good enough” random algorithm; why isn't it used if it's faster?
I made a class called QuickRandom , and its job is to produce random numbers quickly. It's really simple: just take the old value, multiply by a double , and take the decimal part.
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How do I cancel form submission in submit button onclick event?
...r jQuery) that has a good event handling API and tie into the event that really matters (i.e. the form's submit event instead of the button's click event).
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Can I grep only the first n lines of a file?
... Is there a way to do this when using grep's -l option? I'd like to list all the files who's first 5 characters are RIFFD.
– James M. Lay
May 23 '17 at 19:20
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How to find SQL Server running port?
... -n" (from an elevated command prompt) and you don't see "sqlservr.exe" at all then either your SQL Server service is not running or its TCP/IP network library is disabled.
Run SQL Server Configuration Manager (Start | All Programs | Microsoft SQL Server 2008 | Configuration Tools).
Navigate to SQ...
How do I escape a single quote ( ' ) in JavaScript? [duplicate]
... "onmouseover" attribute is just change(, and there's another "attribute" called ex1')' with no value.
The truth is, HTML does not use \ for an escape character. But it does recognise " and ' as escaped quote and apostrophe, respectively.
Armed with this knowledge, use this:
doc...
When to use AtomicReference in Java?
...ke the key to needing this is because you need to do a "compareAndSet". If all I needed to do was set I wouldn't need the AtomicObject at all because of reference updates themselves being atomic?
– sMoZely
Jan 20 '13 at 21:46
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