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What is null in Java?
...ify:
Uninitialized state
Termination condition
Non-existing object
An unknown value
How is it represented in the memory?
In Java? None of your concern. And it's best kept that way.
Is null a good thing?
This is now borderline subjective. Some people say that null causes many programme...
Understanding $.proxy() in jQuery
...setTimeout($.proxy(function() {
$(this).addClass('aNewClass'); // Now "this" is again our element
}, this), 1000);
// ---^--------------and tell it that we want our DOM element to be the
// value of "this" in the function
});
So after we gave $.proxy() the f...
Change branch base
...^..commit5 # cherry-pick range of commits
# note the '^' after commit4
Now, if all is ok, then do force (-f) push to remote PRO branch and delete local PRO.bac branch:
$ git log # check the commit history
$ git push -f origin HEAD # replace the remote PRO by local PRO branch ...
jQuery Validation plugin: disable validation for specified submit buttons
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Hello @lepe, you know how to re-apply jquery validation after writing $("form").validate().cancelSubmit = true;. I tried $("form").validate().cancelSubmit = false; and calling $("form").validate(); on submit of my submit button. Thanks
...
How do I define and use an ENUM in Objective-C?
... that's #imported into your header), because otherwise the compiler won't know what size to make the PlayerState ivar. Other than that, it looks ok to me.
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How do you serialize a model instance in Django?
... assuming obj is your model instance
dict_obj = model_to_dict( obj )
You now just need one straight json.dumps call to serialize it to json:
import json
serialized = json.dumps(dict_obj)
That's it! :)
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...
Error: Jump to case label
...}
dostuff(i);
break;
}
case 2:
dostuff(123); // Now you cannot use i accidentally
}
Edit
To further elaborate, switch statements are just a particularly fancy kind of a goto. Here's an analoguous piece of code exhibiting the same issue but using a goto instead of a switc...
I want to get Year, Month, Day, etc from Java Date to compare with Gregorian Calendar date in Java.
...
Now is 2016, I believe using LocalDate in Java 8 is the best solution that saves your time, another solution using Calendar and Date is full of trouble.
– AnnieFromTaiwan
Jul 6 '16 at 11...
Understanding the meaning of the term and the concept - RAII (Resource Acquisition is Initialization
...nvalid state. it already makes life easier before we even use the object.
Now, let us have a look at temporary objects:
void CopyFileData(FileHandle source, FileHandle dest);
void Foo()
{
CopyFileData(FileHandle("C:\\source"), FileHandle("C:\\dest"));
}
There are three error cases to handle...
What does this Google Play APK publish error message mean?
...
@VikalpPatel it worked for me. The "Publish Now" button becomes enabled after the old apk is deactivated.
– faizal
Nov 17 '14 at 11:00
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