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How to specify a multi-line shell variable?
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set -e exits the shell if a command has an "unanticipated" non-zero exit status. By "unanticipated", I mean it runs in a context where you aren't specifically looking at its exit status. false by itself, for instance, would exit the shell. false || true wou...
C# HttpWebRequest vs WebRequest
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The Create method is static, and exists only on WebRequest. Calling it as HttpWebRequest.Create might look different, but its actually compiled down to calling WebRequest.Create. It only appears to be on HttpWebRequest because of inheritance.
The Create...
How to prevent browser page caching in Rails
...e.headers["Expires"] = "Mon, 01 Jan 1990 00:00:00 GMT"
end
end
Rails 4 and older versions:
class ApplicationController < ActionController::Base
before_filter :set_cache_headers
private
def set_cache_headers
response.headers["Cache-Control"] = "no-cache, no-store"
response.he...
Bootstrap throws Uncaught Error: Bootstrap's JavaScript requires jQuery [closed]
...n interface for a program. I added jQuery 1.11.0 to the <head> tag and thought that was that, but when I launch the web page in a browser jQuery reports an error:
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Sourcemaps off by one line in Chrome, with Ruby on Rails, Webpack, and React JS
... of a couple dozen modules. Most of those modules are ReactJS components, and are parsed by the jsx loader. The output from Webpack is then included in the application.js file along with some other JavaScript libraries generated by gems.
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Python coding standards/best practices [closed]
... you generally use PEP 8 -- Style Guide for Python Code as your coding standards/guidelines? Are there any other formalized standards that you prefer?
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Returning multiple objects in an R function [duplicate]
...ava, I would make a Class, maybe Person which has some private variables and encapsulates, maybe, height , age , etc.
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How to open a file using the open with statement
I'm looking at how to do file input and output in Python. I've written the following code to read a list of names (one per line) from a file into another file while checking a name against the names in the file and appending text to the occurrences in the file. The code works. Could it be done bette...
Node.js - use of module.exports as a constructor
...Module.exports, theRequireFunction);
In the example above module.exports and exports are the same object. The cool part is that you don't see any of that in your CommonJS modules as the whole system takes care of that for you all you need to know is there is a module object with an exports propert...
Is there a foreach in MATLAB? If so, how does it behave if the underlying data changes?
...ropriate --- you'll be able to test the loop condition at every iteration, and set the value of the loop variable(s) as you wish:
n = 10;
f = n;
while n > 1
n = n-1;
f = f*n;
end
disp(['n! = ' num2str(f)])
Btw, the for-each loop in Java (and possibly other languages) produces unspecifi...