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Difference between sampling and profiling in jVisualVM
VisualVM has two separate tabs for sampling and profiling. What is the difference between sampling and profiling in VisualVM?
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Store images in a MongoDB database
...o using GridFS instead of just the BinData type?
– Brandon Fitzpatrick
Jan 29 '15 at 16:32
3
Vide...
How to get memory available or used in C#
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Process proc = Process.GetCurrentProcess();
To get the current process and use:
proc.PrivateMemorySize64;
To get the private memory usage. For more information look at this link.
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impr...
Include CSS,javascript file in Yii Framework
...answered Jan 13 '10 at 9:55
Alexander HramovAlexander Hramov
2,22011 gold badge1515 silver badges1818 bronze badges
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type object 'datetime.datetime' has no attribute 'datetime'
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Datetime is a module that allows for handling of dates, times and datetimes (all of which are datatypes). This means that datetime is both a top-level module as well as being a type within that module. This is confusing.
Your error is probably based on the confu...
Razor view engine, how to enter preprocessor(#if debug)
...sor will essentially read public static bool IsDebug(...){ return true; }, and vice versa for non DEBUG mode.
– mekb
Aug 7 '19 at 9:46
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How to add an object to an array
... a question: myArray = []; myArray.push({'text': 'some text', 'id' : 13}); and now myArray is empty. So if we try get the value from myArray[0]['text'] it will be empty, why? take.ms/jSvbn
– fdrv
Mar 16 '16 at 14:55
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Can you use if/else conditions in CSS?
...class="normal">Text</p>
<p class="active">Text</p>
and in your CSS file:
p.normal {
background-position : 150px 8px;
}
p.active {
background-position : 4px 8px;
}
That's the CSS way to do it.
Then there are CSS preprocessors like Sass. You can use conditionals there...
SharedPreferences.onSharedPreferenceChangeListener not being called consistently
..., but eventually, will get garbage collected, removed from the WeakHashMap and stop working.
Keep a reference to the listener in a field of your class and you will be OK, provided your class instance is not destroyed.
i.e. instead of:
prefs.registerOnSharedPreferenceChangeListener(
new SharedPr...
ssh: The authenticity of host 'hostname' can't be established
When i ssh to a machine, sometime i get this error warning and it prompts to say "yes" or "no". This cause some trouble when running from scripts that automatically ssh to other machines.
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