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How do you reinstall an app's dependencies using npm?
...rsions of dependencies defined in package.json being pulled down. If you require very specific versions of dependencies for your app, be careful and look into npm shrinkwrap or checking in your node_modules directory to source control.
– smithclay
Oct 12 '12 at...
how to get the last character of a string?
...tring.prototype.slice method.
Just by:
str.slice(-1);
A negative start index slices the string from length+index, to length, being index -1, the last character is extracted:
"abc".slice(-1); // "c";
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Advantages and disadvantages of GUID / UUID database keys
...t, and I thought I should point out a big downside of GUID PK's: Clustered Indexes.
If you have a lot of records, and a clustered index on a GUID, your insert performance will SUCK, as you get inserts in random places in the list of items (thats the point), not at the end (which is quick)
So if yo...
Renaming the current file in Vim
...
Q: "what kind of sociopathic weirdo puts spaces in the dir name?" -- A: the guy who started the project long ago who is now your boss... promoted out of coding into his true area of expertise: following development methodolog...
Diff files present in two different directories
... you are only interested to see the files that differ, you may use:
diff -qr dir_one dir_two | sort
Option "q" will only show the files that differ but not the content that differ, and "sort" will arrange the output alphabetically.
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Left Align Cells in UICollectionView
... use.
CGFloat maxY = -1.0f;
//this loop assumes attributes are in IndexPath order
for (UICollectionViewLayoutAttributes *attribute in attributes) {
if (attribute.frame.origin.y >= maxY) {
leftMargin = self.sectionInset.left;
}
attribute.frame = CG...
Is there a vim command to relocate a tab?
...
You can relocate a tab with :tabm using either relative or zero-index absolute arguments.
absolute:
Move tab to position i: :tabm i
relative:
Move tab i positions to the right: :tabm +i
Move tab i positions to the left: :tabm -i
It's a relatively new feature. So if it doesn't wo...
How to ignore files which are in repository?
... it locally, you could also make it ignored by the git status:
git update-index --assume-unchanged config.php
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How to implement __iter__(self) for a container object (Python)
..., *data):
... self.data = list(data)
... def __getitem__(self, index):
... return self.data[index]
... def __len__(self):
... return len(self.data)
...
...
...
>>> c = MyContainer(1, "two", 3, 4.0)
>>> for i in c:
... print i
... ...
Changing user agent on urllib2.urlopen
...from everyone's favorite Dive Into Python.
The short story: You can use Request.add_header to do this.
You can also pass the headers as a dictionary when creating the Request itself, as the docs note:
headers should be a dictionary, and will be treated as if add_header() was called with each k...