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How can I shuffle an array? [duplicate]
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Use the modern version of the Fisher–Yates shuffle algorithm:
/**
* Shuffles array in place.
* @param {Array} a items An array containing the items.
*/
function shuffle(a) {
var j, x, i;
for (i = a.length - 1; i > 0; i--) {
j = Math.floor(Math.random() * (i ...
android layout: This tag and its children can be replaced by one and a compound drawable
... Nifty. But what if I need to set properties on the drawable, like define it to 60dip x 60dip?
– Kyle Clegg
Apr 25 '12 at 0:09
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Print all properties of a Python Class [duplicate]
I have a class Animal with several properties like:
6 Answers
6
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Android device does not show up in adb list [closed]
...ed on the device. After adding the proper %SingleAdbInterface% and %CompositeAdbInterface% entries to the android_winusb.inf file, I now see "Android ADB Interface" in my Device Manager. However, running adb devices at the command-line does not show the device.
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How to specify JVM maximum heap size “-Xmx” for running an application with “run” action in SBT?
...processing and needs more memory than JVM gives by default. I know in Java it's specified by "-Xmx" option. How do I set SBT up to use particular "-Xmx" value to run an application with "run" action?
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Able to push to all git remotes with the one command?
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To push all branches to all remotes:
git remote | xargs -L1 git push --all
Or if you want to push a specific branch to all remotes:
Replace master with the branch you want to push.
git remote | xargs -L1 -I R git push R master
(Bonus) To make a git alias fo...
Alarm Manager Example
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This is working code. It wakes CPU every 10 minutes until the phone turns off.
Add to Manifest.xml:
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<uses-permission android:name="android.permission.WAKE_LOCK"></uses-permission>
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<receiver android:process=":remote" androi...
Counting DISTINCT over multiple columns
...mprove performance, you could try creating a persisted computed column on either a hash or concatenated value of the two columns.
Once it is persisted, provided the column is deterministic and you are using "sane" database settings, it can be indexed and / or statistics can be created on it.
I b...
How to restore the permissions of files and directories within git if they have been modified?
I have a git checkout. All the file permissions are different than what git thinks they should be therefore they all show up as modified.
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Why doesn't Dijkstra's algorithm work for negative weight edges?
Can somebody tell me why Dijkstra's algorithm for single source shortest path assumes that the edges must be non-negative.
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