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Match whole string
...nations match a whole string, it might be necessary to wrap it with a (non)capturing group: /^(?:abc|def)$/ or /^(abc|def)$/. Otherwise, if the group is not used, /^abc|def$/ will match abc at the start of the string OR def at the end of the string.
– Wiktor Stribiżew
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How to sort an array of objects by multiple fields?
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Original function:
var sort_by = function() {
var fields = [].slice.call(arguments),
n_fields = fields.length;
return function(A,B) {
var a, b, field, key, primer, reverse, result, i;
for(i = 0; i < n_fields; i++) {
result = 0;
field = fields...
Specify format for input arguments argparse python
...any necessary type-checking and type conversions to be performed ... type= can take any callable that takes a single string argument and returns the converted value
You could do something like:
def valid_date(s):
try:
return datetime.strptime(s, "%Y-%m-%d")
except ValueError:
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How to make git ignore changes in case?
... on here, but sometimes a particular file in my repository will change the case of it's name. e.g.,:
4 Answers
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How can I make a ComboBox non-editable in .NET?
...pDownList". The ComboBox is now essentially select-only for the user. You can do this in the Visual Studio designer, or in C# like this:
stateComboBox.DropDownStyle = ComboBoxStyle.DropDownList;
Link to the documentation for the ComboBox DropDownStyle property on MSDN.
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In Git, how do I figure out what my current revision is?
...ion hash:
$ git rev-parse --short HEAD
It is often sufficient to do:
$ cat .git/refs/heads/${branch-master}
but this is not reliable as the ref may be packed.
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Open file dialog and select a file using WPF controls and C#
...*.jpg)|*.jpg|GIF Files (*.gif)|*.gif";
// Display OpenFileDialog by calling ShowDialog method
Nullable<bool> result = dlg.ShowDialog();
// Get the selected file name and display in a TextBox
if (result == true)
{
// Open document
string filename = dl...
Having options in argparse with a dash
...ike args.pm-export I get the error that there is not attribute pm . How can I get around this issue? Is it possible to have - in command line options?
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ManyRelatedManager object is not iterable
...y %}
empty list!
{% endfor %}
UPDATE
If you have a through table, you can access the elements in that table (as detailed here) like so (note, you use the through table name, in lowercase, suffixing _set):
{% for roominfo in participant.roomchoicethru_set.all %}
{{ roominfo.room}} {{ roominfo...
Differences in auto-unboxing between Java 6 vs Java 7
...ing behavior between Java SE 6 and Java SE 7. I'm wondering why that is, because I can't find any documentation of changes in this behavior between these two versions.
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