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How to validate an e-mail address in swift?
...urn emailPred.evaluate(with: email)
}
for versions of Swift earlier than 1.2:
func isValidEmail(email: String) -> Bool {
let emailRegEx = "[A-Z0-9a-z._%+-]+@[A-Za-z0-9.-]+\\.[A-Za-z]{2,64}"
if let emailPred = NSPredicate(format:"SELF MATCHES %@", emailRegEx) {
return emailPred...
What's the difference between “version number” in iTunes Connect, “bundle version”, “bundle version
...ion number shown in the App Store; This must be a pure version number like 1.2.3
Bundle Version (CFBundleVersion)
This doesn't need to be a pure version number. This can be something like 12345 or 1.2.3 (Build 12345AB). This is shown in the About window for Mac OS X apps for example and is often m...
Are HTTPS URLs encrypted?
...oth ends to implement it) and there is no backwards compatibility with TLS 1.2 and below.
CloudFlare is doing it and you can read more about the internals here —
If the chicken must come before the egg, where do you put the chicken?
In practice this means that instead of transmitting the FQDN in p...
Is REST DELETE really idempotent?
... that you get.
http://www.w3.org/Protocols/rfc2616/rfc2616-sec9.html#sec9.1.2 says:
Methods can also have the property of
"idempotence" in that (aside from
error or expiration issues) the
side-effects of N > 0 identical
requests is the same as for a single
request.
While you may ...
How do I calculate percentiles with python/numpy?
....42, 0.48, 0.54, 0.6, 0.66, 0.72, 0.78, 0.84, 0.9, 0.96, 1.02, 1.08, 1.14, 1.2, 1.26, 1.32, 1.38, 1.44, 1.5, 1.56, 1.62, 1.68, 1.74, 1.8, 1.86, 1.92, 1.98, 2.04, 2.1, 2.16, 2.22, 2.28, 2.34, 2.4, 2.46, 2.52, 2.58, 2.64, 2.7, 2.76, 2.82, 2.88, 2.94, 3.0, 3.06, 3.12, 3.18, 3.24, 3.3, 3.36, 3.42, 3.48,...
Python and pip, list all versions of a package that's available?
...go are available:
$ pip install yolk3k
$ yolk -V django
Django 1.3
Django 1.2.5
Django 1.2.4
Django 1.2.3
Django 1.2.2
Django 1.2.1
Django 1.2
Django 1.1.4
Django 1.1.3
Django 1.1.2
Django 1.0.4
yolk3k is a fork of the original yolk which ceased development in 2012. Though yolk is no longer maint...
Scale image to fit a bounding box
...)) + 'px';
container.style.width = (500 + 500 * Math.sin(timestamp * 1.2)) + 'px';
container.style.height = (500 + 500 * Math.sin(timestamp * 1.3)) + 'px';
window.requestAnimationFrame(step);
}
window.requestAnimationFrame(step);
#container {
outline: 1px solid black;
...
What version of javac built my jar?
...s to extract one or more classes from the jar. For example:
$ jar xf log4j-1.2.15.jar
On Linux, Mac OS X or Windows with Cygwin installed, the file(1) command knows the class version.
$ file ./org/apache/log4j/Appender.class
./org/apache/log4j/Appender.class: compiled Java class data, version 45.3
...
Checking in packages from NuGet into version control?
...heir own, but our plan is to look at having that feature built in to NuGet 1.2 or 1.3 hopefully.
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Which is faster: multiple single INSERTs or one multiple-row INSERT?
...18 seconds
100 rows at a time: 1.1 - 1.4 seconds
500 rows at a time: 1.1 - 1.2 seconds
1000 rows at a time: 1.17 - 1.17 seconds
So yes, even just bundling 2 or 3 writes together provides a dramatic improvement in speed (runtime cut by a factor of n), until you get to somewhere between n = 5 and n...