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npm install vs. update - what's the difference?
...ev flag is added
Why use npm install at all?
Because npm install does more when you look besides handling your dependencies in package.json.
As you can see in npm install you can ...
manually install node-modules
set them as global (which puts them in the shell's PATH) using npm install -g &l...
What's the difference between utf8_general_ci and utf8_unicode_ci?
...icode or _general. Much of what's written below is not of much interest anymore if you can use one of the newer collations instead.
Key differences
utf8mb4_unicode_ci is based on the official Unicode rules for universal sorting and comparison, which sorts accurately in a wide range of languages.
u...
Use of .apply() with 'new' operator. Is this possible?
... clarity. After all, any function could be used: eval.bind would save even more code, but that's really way too confusing.
– user123444555621
Mar 23 '12 at 13:59
1
...
Grouping functions (tapply, by, aggregate) and the *apply family
...b c
1 3 91
sapply(x, FUN = sum)
a b c
1 6 5005
In more advanced uses of sapply it will attempt to coerce the
result to a multi-dimensional array, if appropriate. For example, if our function returns vectors of the same length, sapply will use them as columns of a matrix:
sa...
Add UIPickerView & a Button in Action sheet - How?
...
A much more elegant solution IMHO is to set your textfield's input view to UIPickerView and its accessory to UIToolbar. You can check out the QuickDialog project for an example.
– Steve Moser
J...
vector::at vs. vector::operator[]
... case" option rather than at() everywhere. That way you can hope for a bit more performance in release mode, just in case you ever need it.
– Steve Jessop
Feb 21 '12 at 11:01
...
Difference between using bean id and name in Spring configuration file
...From the Spring reference, 3.2.3.1 Naming Beans:
Every bean has one or more ids (also
called identifiers, or names; these
terms refer to the same thing). These
ids must be unique within the
container the bean is hosted in. A
bean will almost always have only one
id, but if a bean has...
Python: split a list based on a condition?
...goodvals]
bad = [x for x in mylist if x not in goodvals]
is there a more elegant way to do this?
That code is perfectly readable, and extremely clear!
# files looks like: [ ('file1.jpg', 33L, '.jpg'), ('file2.avi', 999L, '.avi'), ... ]
IMAGE_TYPES = ('.jpg','.jpeg','.gif','.bmp','.png')
im...
Most efficient way to concatenate strings?
...nd that, when executing 1000 concatenations or less, String.Join() is even more efficient than StringBuilder.
StringBuilder sb = new StringBuilder();
sb.Append(someString);
The only problem with String.Join is that you have to concatenate the strings with a common delimiter.
Edit: as @ryanversaw...