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Is it possible to data-bind visible to the negation (“!”) of a boolean ViewModel property?
...
In order to make the binding aware of changes to the property, I copied the visible binding handler and inverted it:
ko.bindingHandlers.hidden = {
update: function (element, valueAccessor) {
var value = ko.utils.unw...
What is the best way to ensure only one instance of a Bash script is running? [duplicate]
...hat your lock isn't automatically released on kill -9, reboot, power loss, etc.
– Charles Duffy
May 26 '17 at 14:50
...
vs
... integer type you use or else bring it into scope with using std::int32_t; etc (annoying because verbose, but it's the right way to do it just like for any other symbol in the C++ standard library)
Use <stdint.h> (slightly bad because deprecated)
Use <cstdint> and assume your implementat...
Enabling ProGuard in Eclipse for Android
...to be seen... Despite doing the export multiple times, restarting Eclipse, etc. Any idea why? and how to fix this? Thanks.
– Bill The Ape
Jan 6 '12 at 2:54
...
How can I recover a lost commit in Git?
...`
# is not pointing to the latest so you will need to checkout branch
# in order to be able to update the code.
git checkout <commit-id>
# Create a new branch forked to the given commit
git checkout -b <branch name>
git reflog
You can always use the reflog as well.
git reflog will d...
How to echo with different colors in the Windows command line
.../b %errorlevel%
*/
import System;
var arguments:String[] = Environment.GetCommandLineArgs();
var newLine = false;
var output = "";
var foregroundColor = Console.ForegroundColor;
var backgroundColor = Console.BackgroundColor;
var evaluate = false;
var currentBackground=Console.BackgroundColor;
va...
Android: upgrading DB version and adding new table
... //alter existing tables(add column, add/remove constraint)
//etc.
}
}
Using Migration classes
onCreate: Since onCreate will be called when application freshly installed, we also need to execute all migrations(database version updates). So onCreate will looks like this:
pu...
How to display count of notifications in app launcher icon [duplicate]
...anks, It's work well, But I wonder how apps like Line, What's app, Solmail etc. uses badge without those lots of permissions. Any Idea?
– Saeed.re
Nov 6 '14 at 15:15
...
Remove all whitespaces from NSString
...haracter, but any whitespace character like space, tab, unbreakable space, etc), you could split your string using the whitespaceCharacterSet then joining the words again in one string:
NSArray* words = [yourString componentsSeparatedByCharactersInSet :[NSCharacterSet whitespaceAndNewlineCharacterS...
Convert string to integer type in Go?
...with the format string you can specify the number format (like width, base etc.) along with additional extra characters in the input string.
This is great for parsing custom strings holding a number. For example if your input is provided in a form of "id:00123" where you have a prefix "id:" and the...