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Setting the selected value on a Django forms.ChoiceField
...the value of initial refers to the key of the item to be selected, not its index. Took me a couple of tries to work this out!
– BigglesZX
Nov 27 '14 at 11:35
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Preferred way to create a Scala list
...; val list = for(i <- 1 to 10) yield i
list: scala.collection.immutable.IndexedSeq[Int] = Vector(1, 2, 3, 4, 5, 6, 7, 8, 9, 10)
You probably don't even need to convert to a list in most cases :)
The indexed seq will have everything you need:
That is, you can now work on that IndexedSeq:
scal...
How to display a confirmation dialog when clicking an link?
...e the confirm() function in an inline onclick handler.
<a href="delete.php?id=22" onclick="return confirm('Are you sure?')">Link</a>
Advanced event handling
But normally you would like to separate your HTML and Javascript, so I suggest you don't use inline event handlers, but put a c...
How do you use the ellipsis slicing syntax in Python?
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I find we can use a[indexes, ...] while a is a 1-dimenstional array even!
– acgtyrant
May 22 '17 at 8:14
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How do I find out what version of WordPress is running?
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Excellent tip that allows for quickly checking without looking up credentials for any one of 100 client accounts and log in to the FTP! An even quicker way is to "Click the W logo" as per the below answer - again, if you have credentials at the...
What's the meaning of exception code “EXC_I386_GPFLT”?
... 32- or 64-bit OS (such as loading segment registers with invalid selector index or writing to MSR's (model specific registers)).
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Max length UITextField
...e conversion from range (NSRange) to rangeOfTextToReplace (Range<String.Index>). See this video tutorial to understand why this conversion is important.
To make this code work properly, you should also set the textField's smartInsertDeleteType value to UITextSmartInsertDeleteType.no. This will...
month name to month number and vice versa in python
...alendar.month_abbr[month_number]
Abbr-to-Number
list(calendar.month_abbr).index(month_abbr)
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The Definitive C Book Guide and List
... M. Deitel (2015). Lots of good tips and best practices for beginners. The index is very good and serves as a decent reference (just not fully comprehensive, and very shallow).
Head First C - David Griffiths and Dawn Griffiths (2012).
Beginning C (5th Edition) - Ivor Horton (2013). Very good expla...
Formatting code in Notepad++
... To fix that you can do this stackoverflow.com/questions/6985637/… After all of that you should be able to TextFX -> HTML Tidy -> Tidy: Reindent XML as @gablin described.
– darren
Feb 1 '12 at 10:15
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