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What is the correct way of using C++11's range-based for?
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406
Let's start differentiating between observing the elements in the container
vs. modifying them...
Efficient SQL test query or validation query that will work across all (or most) databases
...ir SQL connections for idleness. For example, the JDBC pooling library c3p0 has a property called preferredTestQuery , which gets executed on the connection at configured intervals. Similarly, Apache Commons DBCP has validationQuery .
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View the Task's activity stack
...ctivity:
Activities in Current Activity Manager State:
* TaskRecord{44d07218 #4 A android.task.contacts}
clearOnBackground=true numActivities=2 rootWasReset=true
affinity=android.task.contacts
intent={act=android.intent.action.MAIN cat=[android.intent.category.LAUNCHER] flg=0x1060000...
docker mounting volumes on host
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answered Aug 14 '14 at 16:10
Chris McKinnelChris McKinnel
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What does the explicit keyword mean?
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edited Sep 1 at 7:07
community wiki
18 ...
Kill process by name?
...itlines():
... if 'iChat' in line:
... pid = int(line.split(None, 1)[0])
... os.kill(pid, signal.SIGKILL)
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(you could avoid importing signal, and use 9 instead of signal.SIGKILL, but I just don't particularly like that style, so I'd rather used the named constant this way).
Of cours...
Understanding generators in Python
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409
Note: this post assumes Python 3.x syntax.†
A generator is simply a function which returns a...
What's the difference between window.location= and window.location.replace()?
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Dirty Penguin
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answered Dec 8 '09 at 9:41
cletuscletus
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get an element's id
...e this:
var inputs = document.getElementsByTagName("input");
for (var i = 0; i < inputs.length; i++) {
alert(inputs[i].id);
}
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Double exclamation points? [duplicate]
... // Evaluates to true.
If foo.bar is passed through, then it may not be 0 but some other falsy value. See the following truth table:
Truth Table for javascript
'' == '0' // false
0 == '' // true
0 == '0' // true
false == 'false'...