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How can I get the current stack trace in Java?
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The first element (index 0) in the array is the java.lang.Thread.getStackTrace method, the second (index 1) usually is the first of interest.
– lilalinux
Feb 5 '14 at 13:16
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Limiting number of displayed results when using ngRepeat
...meone else finds it useful.
<div ng-repeat="video in videos" ng-if="$index < 3">
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</div>
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Should I always return IEnumerable instead of IList?
...t;T> has several methods that aren't present in IEnumerable<T>:
IndexOf(T item)
Insert(int index, T item)
RemoveAt(int index)
and Properties:
T this[int index] { get; set; }
If you need these methods in any way, then by all means return IList<T>.
Also, if the method that cons...
Bash command to sum a column of numbers [duplicate]
...actly what I was looking for, here's summing a particular column (column 2 indexed from zero): perl -nle '$s += (split)[2]; END { print $s }' foo.txt or using pipes: cat foo.txt | perl -nle '$s += (split)[2]; END { print $s }'.
– Ben
May 14 '14 at 13:17
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Random color generator
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You can remove .split('') call. String already have Array indexer.
– ujeenator
Jul 27 '15 at 6:08
4
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Define: What is a HashSet?
...It does so by internally managing an array and storing the object using an index which is calculated from the hashcode of the object. Take a look here
HashSet is an unordered collection containing unique elements. It has the standard collection operations Add, Remove, Contains, but since it uses a h...
Pry: show me the stack
...personal_site/app/controllers/posts_controller.rb @ line 7 PostsController#index:
5: def index
6: @posts = Post.all
=> 7: binding.pry
8: end
[1] pry(#<PostsController>)> show-stack
Showing all accessible frames in stack (65 in total):
--
=> #0 index <PostsContr...
When should I use Arrow functions in ECMAScript 6?
...render = function () {
var book = this;
this.$pages.each(function (index) {
var $page = $(this);
book.draw(book.currentPage + index, $page);
});
};
We must use function in order for each to bind this dynamically. We can't use an arrow function here.
Dealing with multip...
Multiple controllers with AngularJS in single page app
...'t mean you will physically have one .html, instead you will have one main index.html and several NESTED .html file. So why single page app? Because this way you do not load pages the standard way (i.e. browser call that completely refreshes the full page) but you just load the content part using An...
What's the best Django search app? [closed]
... We found that Sphinx was the least resource-intensive and fastest way to index and search our documents and that django-sphinx was a nice wrapper on top of the sphinx client.
The group by aggregation is particularly nice, if for example you want to display how many documents with a certain tag or...