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A list of indices in MongoDB?
...
If you want to list all indexes:
db.getCollectionNames().forEach(function(collection) {
indexes = db.getCollection(collection).getIndexes();
print("Indexes for " + collection + ":");
printjson(indexes);
});
...
How do I change the background color with JavaScript?
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Modify the JavaScript property document.body.style.background.
For example:
function changeBackground(color) {
document.body.style.background = color;
}
window.addEventListener("load",function() { changeBackground('red') }...
Activity has leaked ServiceConnection @438030a8 that was original
... only a presumption, but it looks like the kind of problem you'd be seeing if you were using the bindService method on it's own.
To ensure a service is kept running, even after the activity that started it has had its onDestroy method called, you should first use startService.
The android docs for...
Find html label associated with a given input
...ementsByTagName('LABEL');
for (var i = 0; i < labels.length; i++) {
if (labels[i].htmlFor != '') {
var elem = document.getElementById(labels[i].htmlFor);
if (elem)
elem.label = labels[i];
}
}
Then, you can simply go:
document.getElementById('MyFor...
Memcache(d) vs. Varnish for speeding up 3 tier web architecture
...ed pages purged. This will result in an overhead and little benefit for modified pages.
Mostly read -- Varnish will probably cover most of it.
Similar read & write -- Varnish will serve a lot of the pages for you, Memcache will provide info for pages that have a mixture of known and new data all...
SQL Server Management Studio SSMS tries to “save to file” instead of execute on F5
... from the default query option of "Results to Grid" to "Results to File". If that is the case it is easy to fix:
From the Query Menu -> Results To ->
Results To Grid.
OR
Press Ctrl + D
Once you have tried one of the steps above, run your query again by pressing F5.
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Regular cast vs. static_cast vs. dynamic_cast [duplicate]
...and additions. static_cast performs no runtime checks. This should be used if you know that you refer to an object of a specific type, and thus a check would be unnecessary. Example:
void func(void *data) {
// Conversion from MyClass* -> void* is implicit
MyClass *c = static_cast<MyClass*...
Set the table column width constant regardless of the amount of text in its cells?
...-layout to fixed. For some reason, the cell width seems to only stay fixed if the table width is set, too (I think that's silly but whatev).
Also, it is useful to set the overflow property to hidden to prevent any extra text from coming out of the table.
You should make sure to leave all of the b...
No connection string named 'MyEntities' could be found in the application config file
...nced in the transformed .config-file. So that's something to look out for, if you're using config-file transformations.
– Morten Nørgaard
Feb 5 '15 at 22:24
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How to set a timer in android
...tended for cases where you want to have your application code run at a specific time, even if your application is not currently running. For normal timing operations (ticks, timeouts, etc) it is easier and much more efficient to use Handler."
– Christopher Perry
...