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List of installed gems?
...p = Gem::Dependency.new(name, Gem::Requirement.default)
specs = Gem.source_index.search(dep)
puts specs[0..5].map{ |s| "#{s.name} #{s.version}" }
# >> Platform 0.4.0
# >> abstract 1.0.0
# >> actionmailer 3.0.5
# >> actionpack 3.0.5
# >> activemodel 3.0.5
# >> acti...
Getting Checkbox Value in ASP.NET MVC 4
...hes the checkbox param name on the controller):
public ActionResult Index(string param1, string param2,
string param3, IEnumerable<bool> Chbxs)
Then in the controller you can do some stuff like:
if (Chbxs != null && Chbxs.Count() == 2)
{
checkB...
How to sum all column values in multi-dimensional array?
...
Note that this will give you PHP notices (undefined index) every time you access $newarr[$key] on the right side of your assignment, when such values does not yet exist.
– Anti Veeranna
Sep 30 '09 at 8:07
...
LF will be replaced by CRLF in git - What is that and is it important? [duplicate]
... by auto-converting CRLF line endings into LF when
you add a file to the index, and vice versa when it checks out code
onto your filesystem. You can turn on this functionality with the
core.autocrlf setting. If you’re on a Windows machine, set it to true
– this converts LF endings into C...
How can I list all the deleted files in a Git repository?
...
This shows only files in the index that have been deleted in the working copy. The OP wants all files that have ever been deleted.
– Max Nanasy
Sep 25 '12 at 20:58
...
Remove last character of a StringBuilder?
...rverIds) {
sb.append(serverId);
sb.append(",");
}
sb.deleteCharAt(sb.lastIndexOf(","));
Since lastIndexOf will perform a reverse search, and you know that it will find at the first try, performance won't be an issue here.
EDIT
Since I keep getting ups on my answer (thanks folks ????), it is wo...
how to check if object already exists in a list
... the value.
Therefore I would use a HashSet. If later operations required indexing, I'd create a list from it when the Adding was done, otherwise, just use the hashset.
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...
Check string for palindrome
...
And here a complete Java 8 streaming solution. An IntStream provides all indexes til strings half length and then a comparision from the start and from the end is done.
public static void main(String[] args) {
for (String testStr : Arrays.asList("testset", "none", "andna", "haah", "habh", "ha...
Remove ':hover' CSS behavior from element
...on: absolute;
top: 0;
left: 0;
width: 100%;
height: 100%;
z-index: 60;
}
<link href="https://stackpath.bootstrapcdn.com/bootstrap/4.0.0/css/bootstrap.min.css" rel="stylesheet" />
<button class="btn btn-primary">hover</button>
<span class="no-hover">
&l...
Java dynamic array sizes?
...face) that are not "array like". For example:
You cannot use [ ... ] to index a list. You have to use the get(int) and set(int, E) methods.
An ArrayList is created with zero elements. You cannot simple create an ArrayList with 20 elements and then call set(15, foo).
You cannot directly change t...