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MongoDB: How to update multiple documents with a single command?
...ment to update(), where the the third argument is the upsert argument:
db.test.update({foo: "bar"}, {$set: {test: "success!"}}, false, true);
For versions of mongodb 2.2+ you need to set option multi true to update multiple documents at once.
db.test.update({foo: "bar"}, {$set: {test: "success!"...
Assigning a variable NaN in python without numpy
...only doing one or two assignments of nan total, then using numpy.nan is fastest.
– Daniel Goldfarb
Apr 12 '19 at 17:45
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Find out if string ends with another string in C++
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} else {
return false;
}
}
int main () {
std::string test1 = "binary";
std::string test2 = "unary";
std::string test3 = "tertiary";
std::string test4 = "ry";
std::string ending = "nary";
std::cout << hasEnding (test1, ending) << std::endl;
s...
Android studio - Failed to find target android-18
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How do you make it just use the latest SDK instead? I have a similar issue with this library: github.com/devunwired/custom-view-examples , and even though I've made similar steps, I get this error.
– android developer
Se...
How to change the type of a field?
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Watch out, I tested this with Robomongo, and this resulted in type 1: double. Had to use new NumberInt()
– Daniel F
Nov 8 '14 at 19:50
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How to prevent caching of my Javascript file? [duplicate]
...incrementing the querystring each time you make a change:
<script src="test.js?version=1"></script>
Or if you are using a server side language, you could automatically generate this:
ASP.NET:
<script src="test.js?rndstr=<%= getRandomStr() %>"></script>
More info ...
Force CloudFront distribution/file update
... Invalidation request there: docs.amazonwebservices.com/AmazonCloudFront/latest/…
– j0nes
Jul 26 '12 at 6:50
For tho...
Best practices for circular shift (rotate) operations in C++
...rning: This code is broken if INT is a signed integer and the sign is set! Test for example rol<std::int32_t>(1 << 31) which should flip over to 1 but actually becomes -1 (because the sign is retained).
– Nobody
Jun 2 '14 at 20:49
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Difference between $.ajax() and $.get() and $.load()
...: pass arrays of data to the server (POST request)
$( "#objectID" ).load( "test.php", { "choices[]": [ "Jon", "Susan" ] } );
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How do I get only directories using Get-ChildItem?
... only directories recursively
ls -file -r #lists only files recursively
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