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Best practices for circular shift (rotate) operations in C++
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See also an earlier version of this answer on another rotate question with some more details about what asm gcc/clang produce for x86.
The most compiler-friendly way to express a rotate in C and C++ that avoids any Undefined Behaviour seems to be John Regehr's implementation. I've adapted it t...
AngularJS : Clear $watch
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$watch returns a deregistration function. Calling it would deregister the $watcher.
var listener = $scope.$watch("quartz", function () {});
// ...
listener(); // Would clear the watch
share
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check if jquery has been loaded, then load it if false
Does anyone know how to check if jquery has been loaded (with javascript) then load it if it hasnt been loaded.
10 Answers
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Making a mocked method return an argument that was passed to it
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You can create an Answer in Mockito. Let's assume, we have an interface named Application with a method myFunction.
public interface Application {
public String myFunction(String abc);
}
Here is the test method with a Mockito answer:
public void testM...
How to link Docker services across hosts?
... swarm's identifier. The docker client connects to the swarm manager as if it were a regular docker server.
When a container started with Swarm, it is automatically assigned to a free node that meets any constraints that have been defined. The following example is taken from the blog post:
$ dock...
Remove a file from a Git repository without deleting it from the local filesystem
My initial commit contained some log files. I've added *log to my .gitignore , and now I want to remove the log files from my repository.
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How to display a specific user's commits in svn log?
How to display a specific user's commits in svn? I didn't find any switches for that for svn log.
11 Answers
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Watch multiple $scope attributes
...newValues array contains the current values of the watch expressions
// with the indexes matching those of the watchExpression array
// i.e.
// newValues[0] -> $scope.foo
// and
// newValues[1] -> $scope.bar
});
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Turn off spell checking in Eclipse for good
...e to turn off the spell checking via Preferences. (Preferences->General->Editors->Text Editors->Spelling->Enable Spell Checking)
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How can I update npm on Windows?
...upgrade to update npm going forward. Also if you run the NodeJS installer, it will replace the node version.
Upgrades npm in-place, where node installed it.
Easy updating, update to the latest by running npm-windows-upgrade -p -v latest.
Does not modify the default path.
Does not change the defaul...