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Is it possible only to declare a variable without assigning any value in Python?
...ython is dynamic, so you don't need to declare things; they exist automatically in the first scope where they're assigned. So, all you need is a regular old assignment statement as above.
This is nice, because you'll never end up with an uninitialized variable. But be careful -- this doesn't mean...
What is array to pointer decay?
... decay doesn't happen.
If you're passing an array by value, what you're really doing is copying a pointer - a pointer to the array's first element is copied to the parameter (whose type should also be a pointer the array element's type). This works due to array's decaying nature; once decayed, size...
How to go to each directory and execute a command?
...oesn't match anything else than numbers, but in the general case, you basically always want to put the directory name in double quotes inside the loop. cd "$d" would be better in that it transfers to situations where the wildcard does match files whose names contain whitespace and/or shell metachar...
rspec 3 - stub a class method
...g to implement this but when I write that mock and then write expect(Class.foo).to eq(bar) I get a "wrong number of arguments error" because the foo method normally wants 2 arguments....but I just want it to return what I put in the stub
– sixty4bit
Mar 5 '15 a...
How can I parse a YAML file in Python
...d without relying on C headers is PyYaml (documentation), which can be installed via pip install pyyaml:
#!/usr/bin/env python
import yaml
with open("example.yaml", 'r') as stream:
try:
print(yaml.safe_load(stream))
except yaml.YAMLError as exc:
print(exc)
And that's it. A...
How to use multiple arguments for awk with a shebang (i.e. #!)?
...k treated that as a command and printed out every line of input unconditionally. That is why I put in the arbitrary_long_name==0 - it's supposed to fail all the time. You could replace it with some gibberish string. Basically, I was looking for a false-condition in awk that would not adversely affec...
JSON.stringify without quotes on properties?
...ations
In normal cases the aforementioned regexp will work, but mathematically it is impossible to describe the JSON format with a regular expression such that it will work in every single cases (counting the same number of curly brackets is impossible with regexp.) Therefore, I have create a new f...
How to make fill height
...rom. Because your contents would be larger then 1px, the td would automatically grow, as would the div. Kinda a garbage hack, but I bet it would work.
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Static Classes In Java
...ion by client code as it makes no sense to instantiate a static class
Make all the members and functions of the class static - Since the class cannot be instantiated no instance methods can be called or instance fields accessed
Note that the compiler will not prevent you from declaring an instance ...
Groovy executing shell commands
...ing waitForProcessOutput() - "To wait for the output to be fully consumed call waitForProcessOutput()". Source: docs.groovy-lang.org/latest/html/groovy-jdk/java/lang/…
– Srikanth
Aug 12 '16 at 6:58
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