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Swift native base class or NSObject
...yClass' is not convertible to 'MirrorDisposition'"
class MyClass {
let mString = "Test"
func getAsString() -> String {
return mString
}
func testIncorrect_CompilerShouldSpot() {
var myString = "Compare to me"
var myObject = MyClass()
if (myObject == myString) {
...
What exactly is a Maven Snapshot and why do we need it?
...ing, then you should just release release candidates with specific version strings (-RC1, -RC2 or something like that).
– Joachim Sauer
Oct 11 '17 at 10:12
21
...
Simplest way to profile a PHP script
... profiling.
// Call this at each point of interest, passing a descriptive string
function prof_flag($str)
{
global $prof_timing, $prof_names;
$prof_timing[] = microtime(true);
$prof_names[] = $str;
}
// Call this when you're done and want to see the results
function prof_print()
{
...
Is it possible to perform a 'grep search' in all the branches of a Git project?
... to see more recent (relevant) changes first.
git log -p --all -S 'search string'
git log -p --all -G 'match regular expression'
These log commands list commits that add or remove the given search string/regex, (generally) more recent first. The -p option causes the relevant diff to be shown wher...
What is lexical scope?
...ble all variables in interface section of aUnit
interface
var aGlobal: string; // global in the scope of all units that use Main;
type
TmyClass = class
strict private aPrivateVar: Integer; // only known by objects of this class type
// lexical: wi...
扩展App Inventor：具有多点触控和手势检测功能 · App Inventor 2 中文网
...e function Detect is fired when the user performs a gesture, and returns a string which is the name of the recognized gesture. If no gesture is detected, the returned string is empty. The function EnableDetection and DisableDetection are used to switch on and off the detection respectively.
Figure ...
Want to find records with no associated records in Rails
...ager loading table(s) Currently, Active Record recognizes the table in the string, and knows to JOIN the comments table to the query, rather than loading comments in a separate query. However, doing this without writing a full-blown SQL parser is inherently flawed. Since we don't want to write an SQ...
detach all packages while working in R
...
invisible(suppressMessages(suppressWarnings(lapply(c("gsl","fBasics","stringr","stringi","Rmpfr"), require, character.only = TRUE))))
invisible(suppressMessages(suppressWarnings(lapply(names(sessionInfo()$loadedOnly), require, character.only = TRUE))))
sessionInfo()
#the above is a...
Rails.env vs RAILS_ENV
...s/lib/initializer.rb, line 55
def env
@_env ||= ActiveSupport::StringInquirer.new(RAILS_ENV)
end
But, look at specifically how it's wrapped, using ActiveSupport::StringInquirer:
Wrapping a string in this class gives
you a prettier way to test for
equality. The value return...
How to change package name of an Android Application
... And you might need to change app_name in res->values=>strings.xml
– Deqing
Sep 24 '13 at 9:26
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