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How do I inspect the view hierarchy in iOS?
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Oddly enough, now there is another option, http://revealapp.com/, which as of this post is in an open (free) beta. As you can see it's another visual inspector.
EDIT 2014-04-05: Reveal is out of Beta and no longer free. There is a 30-day trial, however.
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Why can't variables be declared in a switch statement?
...nt x=10;
printf(" x is %d",x);
break;
This will not compile, see http://codepad.org/YiyLQTYw. GCC is giving an error:
label can only be a part of statement and declaration is not a statement
Even
case 1: int x;
x=10;
printf(" x is %d",x);
break;
this is al...
What are the rules for evaluation order in Java?
... blog article describing why these rules are sensible in Java and C# here: https://ericlippert.com/2019/01/18/indexer-error-cases/)
Precedence and associativity only tell us that the assignment of zero to b must happen before the assignment to a[b], because the assignment of zero computes the value...
What is the pythonic way to detect the last element in a 'for' loop?
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Although that question is pretty old, I came here via google and I found a quite simple way: List slicing. Let's say you want to put an '&' between all list entries.
s = ""
l = [1, 2, 3]
for i in l[:-1]:
s = s + str(i) + ' & '
s = s + str(l[-1])
This returns '1 &a...
Get the current script file name
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See http://php.net/manual/en/function.pathinfo.php
pathinfo(__FILE__, PATHINFO_FILENAME);
share
|
improve this answer
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Determining Whether a Directory is Writeable
...led across this thread searching for examples for someone. First result on Google, congrats!
People talk about the Pythonic way of doing it in this thread, but no simple code examples? Here you go, for anyone else who stumbles in:
import sys
filepath = 'C:\\path\\to\\your\\file.txt'
try:
fil...
Difference between IsNullOrEmpty and IsNullOrWhiteSpace in C# [duplicate]
...ing.IsNullOrWhiteSpace("\n"); //true
string.IsNullOrEmpty("\n"); //false
https://dotnetfiddle.net/4hkpKM
also see this answer about: whitespace characters
Long answer:
There are also a few other white space characters, you probably never used before
https://docs.microsoft.com/en-us/dotnet/ap...
ImportError: No module named MySQLdb
...rring the following tutorial to make a login page for my web application.
http://code.tutsplus.com/tutorials/intro-to-flask-signing-in-and-out--net-29982
...
On EC2: sudo node command not found, but node without sudo is ok
...ere's an approach that doesn't use symlinks, or require root:
$ git clone https://github.com/joyent/node.git
$ cd node
$ mkdir ~/opt
$ export PREFIX=~/opt; ./configure
$ make
$ make install
$ echo 'export PATH=~/opt/bin:${PATH}' >> ~/.bashrc
Then I did:
$ git clone https://github.com/isaac...
Setting Environment Variables for Node to retrieve
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I highly recommend looking into the dotenv package.
https://github.com/motdotla/dotenv
It's kind of similar to the library suggested within the answer from @Benxamin, but it's a lot cleaner and doesn't require any bash scripts. Also worth noting that the code base is popular ...