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Is there a performance gain in using single quotes vs double quotes in ruby?
...0
Benchmark.bm(15) do |x|
x.report("assign single") { n.times do; c = 'a string'; end}
x.report("assign double") { n.times do; c = "a string"; end}
x.report("concat single") { n.times do; 'a string ' + 'b string'; end}
x.report("concat double") { n.times do; "a string " + "b string"; end}
en...
How to create an array containing 1…N
...want an array of numbers 1..n that you can later loop through.
If this is all you need, can you do this instead?
var foo = new Array(45); // create an empty array with length 45
then when you want to use it... (un-optimized, just for example)
for(var i = 0; i < foo.length; i++){
document.w...
How to open link in new tab on html?
...
The special targets all start with an underscore. blank would be the name of a frame or window. It may seem to work, because a new window or tab will probably be opened when none exists with the name 'blank', but a second click on the link shoul...
How do I create a self-signed certificate for code signing on Windows?
...User\My
2) set the password for it:
$CertPassword = ConvertTo-SecureString
-String "my_passowrd" -Force –AsPlainText
3) Export it:
Export-PfxCertificate -Cert "cert:\CurrentUser\My\$($cert.Thumbprint)"
-FilePath "d:\selfsigncert.pfx" -Password $CertPassword
Your certificate s...
Do I need to explicitly call the base virtual destructor?
...the destructor again as virtual on the inheriting class, but do I need to call the base destructor?
7 Answers
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Make Iframe to fit 100% of container's remaining height
...ullscreen view or the snippet editor, but the small preview window gets an extra scrollbar. No idea what that is, iframes are weird.
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Xcode doesn't show the line that causes a crash
Every time my app crashes Xcode highlights the UIApicationMain() call in the main() function as the line that caused the crash. In some cases that used to be normal (segmentation fault for example) but the crash I am trying to deal with is a simple SIGABRT with detailed information logged in the con...
ASP.NET Web Site or ASP.NET Web Application?
...ild, if you’ve made changes.
In an MVC Web Application project you have extra commands and dialogs for common tasks, like ‘Add View’, ‘Go To View’, ‘Add Controller’, etc. These are not available in an MVC Web Site.
If you use IIS Express as the development server, in Web Sites you ca...
Why no love for SQL? [closed]
...mbiguous, and also because most vendors have added their own (nonstandard) extras there. That is, SQL written for a MySQL DB might not work quite similarly with, say, an Oracle DB — even if it "should".
I agree, though, that SQL is way better than most of the abstraction layers out there. It's no...
Can I combine :nth-child() or :nth-of-type() with an arbitrary selector?
...lution, you'll have to use a script to filter elements and apply styles or extra class names accordingly. For example, the following is a common workaround using jQuery (assuming there is only one row group populated with tr elements within the table):
$('table.myClass').each(function() {
// Note ...