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list_display - boolean icons for methods
... although it's a bit hard to find - go a couple of screens down from here, and you'll find this:
If the string given is a method of the model, ModelAdmin or a callable that returns True or False Django will display a pretty "on" or "off" icon if you give the method a boolean attribute whose valu...
Move an item inside a list?
...already in the list to the specified position, you would have to delete it and insert it at the new position:
l.insert(newindex, l.pop(oldindex))
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Add a prefix string to beginning of each line
...can use any other character not in prefix, or
escape the /, so the sed command becomes
's#^#/opt/workdir#'
# or
's/^/\/opt\/workdir/'
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Error: “The node to be inserted is from a different document context”
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@BDotA true if you want to import the node and all its children; false if you just want to import the top-level node.
– Rex M
Jun 10 '10 at 23:28
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How to conditionally push an item in an observable array?
...itemToAdd);
}
If the two are not actually a reference to the same object and you want to run custom comparison logic, then you can use ko.utils.arrayFirst like:
var match = ko.utils.arrayFirst(myObservableArray(), function(item) {
return itemToAdd.id === item.id;
});
if (!match) {
myObserv...
How do I do a bulk insert in mySQL using node.js
... confusing to me. Why does the array have to be [[['a', 'b'], ['c', 'd']]] and not [['a', 'b'], ['c', 'd']] like the documentation says?
– Victorio Berra
Aug 21 '15 at 14:57
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In JavaScript, is returning out of a switch statement considered a better practice than using break?
... I wasn't using your example, just the technique. Look at my question and click the link to my jsFiddle to see what I'm talking about.
– Code Maverick
May 24 '11 at 19:19
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How to make fill height
...work. Let me get back to you when I've tried. I did read up on the subject and understood that <div> needs a specified height to be able to scale to 100%. From what I read that was possible to do with jQuery though, since it can calculate it for me.
– user191152
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How can I initialize an ArrayList with all zeroes in Java?
...mber of elements it can hold before it needs to resize its internal array (and has nothing to do with the initial number of elements in the list).
To initialize an list with 60 zeros you do:
List<Integer> list = new ArrayList<Integer>(Collections.nCopies(60, 0));
If you want to cre...
How can I expand the full path of the current file to pass to a command in Vim?
When I go to command mode and type
6 Answers
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