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What is cardinality in MySQL?
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122
Max cardinality: All values are unique
Min cardinality: All values are the same
Some columns...
How to reset AUTO_INCREMENT in MySQL?
...eset the AUTO_INCREMENT of a field?
I want it to start counting from 1 again.
24 Answers
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Javascript object Vs JSON
...n () {
alert('hello');
}
}); // returns the string "{"foo":"2011-11-28T10:21:33.939Z"}"
For parsing a JSON string, is the method below recommended? var javascriptObj = JSON.parse(jSonString);
Yes, but older browsers don't support JSON natively (IE <8). To support these, you sho...
How to detect if a specific file exists in Vimscript?
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138
With a bit of searching in vim man I've found this, which looks much better that the original:...
ADB Android Device Unauthorized
...d downloaded it again) I can't debug my applications on Samsung Galaxy i9001 (with CyanogenMod - Android 4.4.2). It worked fine before reinstallation.
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How do I pass extra arguments to a Python decorator?
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168
Since you are calling the decorator like a function, it needs to return another function which...
How to override trait function and call it from the overridden function?
...one was almost there:
trait A {
function calc($v) {
return $v+1;
}
}
class MyClass {
use A {
calc as protected traitcalc;
}
function calc($v) {
$v++;
return $this->traitcalc($v);
}
}
The trait is not a class. You can't access its member...
How do you query for “is not null” in Mongo?
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10 Answers
10
Active
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Visual Studio build fails: unable to copy exe-file from obj\debug to bin\debug
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