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How to redirect a url in NGINX
...dd another server block:
server {
#implemented by default, change if you need different ip or port
#listen *:80 | *:8000;
server_name test.com;
return 301 $scheme://www.test.com$request_uri;
}
And edit your main server block server_name variable as following:
serv...
How can I check a C# variable is an empty string “” or null? [duplicate]
...that can be equal to "" or null. Is there just one function that can check if it's not "" or null?
6 Answers
...
Get contentEditable caret index position
...s
The editable div does not have the CSS white-space property set to pre
If you need a more general approach that will work content with nested elements, try this answer:
https://stackoverflow.com/a/4812022/96100
Code:
function getCaretPosition(editableDiv) {
var caretPos = 0,
sel, ...
Python Pandas: Get index of rows which column matches certain value
...()
or equivalently,
df.index[df['BoolCol']].tolist()
You can see the difference quite clearly by playing with a DataFrame with
a non-default index that does not equal to the row's numerical position:
df = pd.DataFrame({'BoolCol': [True, False, False, True, True]},
index=[10,20,30,40,50]...
How to list only top level directories in Python?
...to get the real path):
>>> [ name for name in os.listdir(thedir) if os.path.isdir(os.path.join(thedir, name)) ]
['ctypes', 'distutils', 'encodings', 'lib-tk', 'config', 'idlelib', 'xml', 'bsddb', 'hotshot', 'logging', 'doc', 'test', 'compiler', 'curses', 'site-packages', 'email', 'sqlite3'...
Change type of varchar field to integer: “cannot be cast automatically to type integer”
...ting integer or assign a varchar field to an integer one), so you must specify an explicit cast using ALTER TABLE ... ALTER COLUMN ... TYPE ... USING:
ALTER TABLE the_table ALTER COLUMN col_name TYPE integer USING (col_name::integer);
Note that you may have whitespace in your text fields; in that...
Equivalent of String.format in jQuery
...
Warning: This will format recursively: so if you have {0}{1}, {0} will be replaced first, and then all occurrences of {1} in both the already-substituted text and the original format will be replaced.
– Zenexer
Jul 1 '13 at 18:1...
How do I change the text of a span element using JavaScript?
If I have a span , say:
13 Answers
13
...
Git branch diverged after rebase
...n't work, because the integrity of the branches history will be disturbed. If you are collaborating with others on this branch, force pushing is a bad idea, as it will cause other collaborators to become very confused when their history suddenly doesn't match.
TL;DR - If you're not collaborating, ...
Python: List vs Dict for look up table
... amortized O(1), with regard to the number of items in the data structure. If you don't need to associate values, use sets.
Memory
Both dictionaries and sets use hashing and they use much more memory than only for object storage. According to A.M. Kuchling in Beautiful Code, the implementation tri...