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What is a stream?
What is a stream in the programming world? Why do we need it?
6 Answers
6
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How to know user has clicked “X” or the “Close” button?
... CloseReason.UserClosing to know that the user had decided to close the form
but I guess it is the same for both clicking the X button or clicking the close button.
So how can I differentiate between these two in my code?
...
How to check if a variable is null or empty string or all whitespace in JavaScript?
I need to check to see if a variable is null or has all empty spaces or is just blank ("").
12 Answers
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How to delete a file or folder?
How do I delete a file or folder in Python?
13 Answers
13
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How to check if array is empty or does not exist? [duplicate]
What's the best way to check if an array is empty or does not exist?
1 Answer
1
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Difference between
...r because any of the lists that could be assigned to foo3 contain a Number or a subclass of Number.
You can't read an Integer because foo3 could be pointing at a List<Double>.
You can't read a Double because foo3 could be pointing at a List<Integer>.
Writing - Given the above possible a...
How to convert Nonetype to int or string?
...onditions under which it gives None and determine a sensible value to use for that, with the usual conditional code:
result = could_return_none(x)
if result is None:
result = DEFAULT_VALUE
...or even...
if x == THING_THAT_RESULTS_IN_NONE:
result = DEFAULT_VALUE
else:
result = could_...
How to fix “Headers already sent” error in PHP
When running my script, I am getting several errors like this:
11 Answers
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Nginx缓存解决方案：SRCache - 更多技术 - 清泛网 - 专注C/C++及内核技术
...;
lua_package_path '/path/to/phoenix/include/?.lua;/path/to/phoenix/vendor/?.lua;;';
init_by_lua_file /path/to/phoenix/config.lua;
server {
listen 80;
server_name foo.com;
root /path/to/root;
index index.html index.htm index.php;
location / {
try_fi...
Determine if Python is running inside virtualenv
...
The most reliable way to check for this is to check whether sys.prefix == sys.base_prefix. If they are equal, you are not in a virtual environment; if they are unequal, you are. Inside a virtual environment, sys.prefix points to the virtual environment, and...