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Linux bash: Multiple variable assignment
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First thing that comes into my mind:
read -r a b c <<<$(echo 1 2 3) ; echo "$a|$b|$c"
output is, unsurprisingly
1|2|3
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Where to define custom error types in Ruby and/or Rails?
...w to handle this with ActiveRecord models.
Creating Custom Error
class MyClass
# create a custome error
class MissingRequirement < StandardError; end
def my_instance_method
raise MyClass::MissingRequirement, "My error msg" unless true
end
end
Testing (minitest)
test "should...
See what process is using a file in Mac OS X
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lsof | grep myfilename worked for me. I've got a PDF file in my Trash that the system claims is in use. Weirdly lsof claims it's in use by Preview but Preview doesn't seem to be running (eg when I command-tab through the running apps) b...
How to un-escape a backslash-escaped string?
...istopheD's answer covers python 2.
# create a `bytes` object from a `str`
my_str = "Hello,\\nworld"
# (pick an encoding suitable for your str, e.g. 'latin1')
my_bytes = my_str.encode("utf-8")
# or directly
my_bytes = b"Hello,\\nworld"
print(my_bytes.decode("unicode_escape"))
# "Hello,
# world"
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Where in memory are my variables stored in C?
By considering that the memory is divided into four segments: data, heap, stack, and code, where do global variables, static variables, constant data types, local variables (defined and declared in functions), variables (in main function), pointers, and dynamically allocated space (using malloc and ...
Logging levels - Logback - rule-of-thumb to assign log levels
I'm using logback in my current project.
5 Answers
5
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What does an exclamation mark mean in the Swift language?
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Hi @RichardWashington - I've added an update to my answer which hopefully clarifies some of this.
– Ashley
Jun 9 '14 at 14:14
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Adding custom radio buttons in android
...ng the functionality intact .... All i am trying to achieve as i showed in my question ... Any further directions ! [Note:: please look at the updated question]
– Devrath
Oct 3 '13 at 16:41
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Access-Control-Allow-Origin error sending a jQuery Post to Google API's
... url: 'https://www.googleapis.com/moderator/v1/series?key='+key,
data: myData,
type: 'GET',
crossDomain: true,
dataType: 'jsonp',
success: function() { alert("Success"); },
error: function() { alert('Failed!'); },
beforeSend: setHeader
});
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Android OnClickListener - identify a button
...id.b1);
b2 = (Button) findViewById(R.id.b2);
b1.setOnClickListener(myhandler1);
b2.setOnClickListener(myhandler2);
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}
View.OnClickListener myhandler1 = new View.OnClickListener() {
public void onClick(View v) {
// it was the 1st button
}
};
View.OnClickListen...