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Getting and removing the first character of a string
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x <- 'hello stackoverflow'
substring(x, 2, nchar(x))
Idea is select all characters starting from 2 to number of characters in x. This is important when you have unequal number of characters in word or phrase.
Selecting the first letter is trivial as previous answers:
substring(x,1,1)
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How can I select item with class within a DIV?
... context-selector approach is written differently jQuery implements, internally, the same $('#mydiv').find('.myclass'); approach as used in the first code snippet. Incidentally: '...select every id=mydiv'? There should only ever be one use of a given id in a page (an id must be unique within the doc...
WPF TemplateBinding vs RelativeSource TemplatedParent
... at compile time against the type specified in the control template. This allows for much faster instantiation of compiled templates. Just fumble the name in a templatebinding and you'll see that the compiler will flag it.
The binding markup is resolved at runtime. While slower to execute, the...
Escaping keyword-like column names in Postgres
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Some warning: Without the quotes PostgreSQL folds all identifiers to lowercase. MyTable, myTable and mytable are just the same. With the quotes this folding is not done. So "MyTable" is no more the same as mytable.
– A.H.
Oct 4 '11 at 1...
How to specify the order of CSS classes?
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I actually noticed in Bootstrap that my custom "back-to-top" class was ignored inside a <p> tag. But then when I reversed them and put my custom class first, both my class and Bootstrap's class' features were accepted: <p ...
Select statement to find duplicates on certain fields
...se and a sub query if needed. If you can post some sample data, it would really help.
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How do you reset the Zoom in Visual Studio 2010 and above
... must be turned on to see the zoom level.
Tools / Options / Text Editor / All Languages / Scroll Bars
Another option (Visual Studio 2013/2015) is to use Ctrl with the mouse wheel (up to zoom in, down to zoom out).
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WPF TextBox won't fill in StackPanel
...s meant for "stacking" things even outside the visible region, so it won't allow you to fill remaining space in the stacking dimension.
You can use a DockPanel with LastChildFill set to true and dock all the non-filling controls to the Left to simulate the effect you want.
<DockPanel Background...
iOS: Multi-line UILabel in Auto Layout
...e in iOS8. It also, from my understanding, will adjust the height automatically and in my experience you don't need to set a height constraint for it to work. This worked for me using an explicit width.
– Tony
Mar 25 '15 at 18:28
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(![]+[])[+[]]… Explain why this works
... @rlemon, there's no int data type on the language, in fact all numbers are double-precision 64-bit format (IEEE 754 values), even though some operators work internally with Integer values (like the bitwise operators) the result is always a double. The 'i' comes in this example from u...