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Make xargs execute the command once for each line of input
...e command exactly once for each line of input given?
It's default behavior is to chunk the lines and execute the command once, passing multiple lines to each instance.
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python: How do I know what type of exception occurred?
... catch generic exceptions, but no one seems to want to tell you why, which is essential to understanding when you can break the "rule". Here is an explanation. Basically, it's so that you don't hide:
the fact that an error occurred
the specifics of the error that occurred (error hiding antipatter...
std::vector versus std::array in C++
...red over another? What are the pros and cons of each? All my textbook does is list how they are the same.
5 Answers
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Access to the path is denied
I know this question was asked many times here, but I can't find a solution to my problem.
I'm trying to save image to the folder in .net c# but get this exception:
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How do you check if a JavaScript Object is a DOM Object?
...
This might be of interest:
function isElement(obj) {
try {
//Using W3 DOM2 (works for FF, Opera and Chrome)
return obj instanceof HTMLElement;
}
catch(e){
//Browsers not supporting W3 DOM2 don't have HTMLElem...
Inner class within Interface
Is it possible to create an inner class within an interface?
If it is possible why would we want to create an inner class like that since
we are not going to create any interface objects?
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What is the difference between and ?
What is the difference between <html lang="en"> and <html lang="en-US"> ? What other values can follow the dash?
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Test if a vector contains a given element
...irst appearance) and %in% (returns a Boolean) functions are designed for this.
v <- c('a','b','c','e')
'b' %in% v
## returns TRUE
match('b',v)
## returns the first location of 'b', in this case: 2
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Ajax request returns 200 OK, but an error event is fired instead of success
...e header sent by the server. If the conversion fails (e.g. if the JSON/XML is invalid), the error callback is fired.
Your AJAX code contains:
dataType: "json"
In this case jQuery:
Evaluates the response as JSON and returns a JavaScript object. […]
The JSON data is parsed in a strict ma...
live output from subprocess command
...a log-file) the output information, and check for any errors. The problem is, I have no idea how the code is progressing. If I run it directly from the command line, it gives me output about what iteration its at, what time, what the next time-step is, etc.
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