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Undefined reference to vtable
...rtual destructor (was switching to unique / shared pointers and removed it from the source file, but didn't have an "implementation" in the header)
– svenevs
Apr 30 '16 at 7:57
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Advantages of using prototype, vs defining methods straight in the constructor? [duplicate]
...g effect - tricky, indeed. Thanks for such a great answer, I learned a lot from it!
– Leo
Dec 22 '10 at 11:09
5
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Missing Maven dependencies in Eclipse project
...text Menu > Configure > Convert to Maven Project....
Accept defaults from Maven wizard.
Overwrite POM with your backedup POM. (Now you have Maven Dependencies folder).
Maven Update/Clean for good measure.
Hope that helps someone. :)
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psql invalid command \N while restore sql
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It is quite evil from PostgreSQL to give such a misleading warning, your answer saved me a lot of time!
– Tregoreg
Jul 21 '14 at 20:35
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How can I update a single row in a ListView?
...iew using View#getChildAt(int index). The catch is that it starts counting from the first visible item. In fact, you can only get the visible items. You solve this with ListView#getFirstVisiblePosition().
Example:
private void updateView(int index){
View v = yourListView.getChildAt(index -
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Change type of varchar field to integer: “cannot be cast automatically to type integer”
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There is no implicit (automatic) cast from text or varchar to integer (i.e. you cannot pass a varchar to a function expecting integer or assign a varchar field to an integer one), so you must specify an explicit cast using ALTER TABLE ... ALTER COLUMN ... TYPE .....
How to close current tab in a browser window?
...you are allowed to close the window with javascript. Firefox disallows you from closing other windows. I believe IE will ask the user for confirmation. Other browsers may vary.
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improve this ...
Return multiple values in JavaScript?
...this table for browser compatibility. Basically, all modern browsers aside from IE support this syntax, but you can compile ES6 code down to IE-compatible JavaScript at build time with tools like Babel.
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Determine the type of an object?
...f object you also have the:
__class__
attribute. Here is a sample taken from Python 3.3 console
>>> str = "str"
>>> str.__class__
<class 'str'>
>>> i = 2
>>> i.__class__
<class 'int'>
>>> class Test():
... pass
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>>> a = Tes...
git add, commit and push commands in one?
... @KaiCarver Nice thought, but personally I do not like it. It prevents you from using multiple args, and also goes against the normal convention of a single string arg with spaces being wrapped in quotes. This is second nature to me at this point (and I would assume a lot of developers). Leaving out...