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How to echo shell commands as they are executed
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set -x or set -o xtrace expands variables and prints a little + sign before the line.
set -v or set -o verbose does not expand the variables before printing.
Use set +x and set +v to turn off the above settings.
On the first line of the script, one can put #!/bin/sh -x (or -v) ...
Get selected option from select element
... am trying to get the selected option from a dropdown and populate another item with that text, as follows. IE is barking up a storm and it doesn't work in Firefox:
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Difference between \n and \r?
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In terms of ascii code, it's 3 -- since they're 10 and 13 respectively;-).
But seriously, there are many:
in Unix and all Unix-like systems, \n is the code for end-of-line, \r means nothing special
as a consequence, in C and most languages that s...
Create MSI or setup project with Visual Studio 2012
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To create setup projects in Visual Studio 2012 with InstallShield Limited Edition, watch this video.
The InstallShield limited edition that cannot install services.
"ISLE is by far the worst installer option and the upgraded, read -
paid for, version is cumbersome t...
Session timeout in ASP.NET
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Are you using Forms authentication?
Forms authentication uses it own value for timeout (30 min. by default). A forms authentication timeout will send the user to the login page with the session still active. This may look like the behavior your app gives when session times out making it...
Can I find out the return value before returning while debugging in Intellij?
With:
4 Answers
4
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JavaScript data grid for millions of rows [closed]
...d)
UPDATE
This has now been implemented in SlickGrid.
Please see http://github.com/mleibman/SlickGrid/issues#issue/22 for an ongoing discussion on making SlickGrid work with larger numbers of rows.
The problem is that SlickGrid does not virtualize the scrollbar itself - the scrollable area's heig...
Constantly print Subprocess output while process is running
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You can use iter to process lines as soon as the command outputs them: lines = iter(fd.readline, ""). Here's a full example showing a typical use case (thanks to @jfs for helping out):
from __future__ import print_function # Only Python...
Django rest framework nested self-referential objects
...tCategory', 'name', 'description', 'subcategories')
If you want to deal with arbitrarily nested fields you should take a look at the customising the default fields part of the docs. You can't currently directly declare a serializer as a field on itself, but you can use these methods to override w...
Allow anything through CORS Policy
... API for which I used rails-api.
I've also set header in a before filter. It looks like this:
headers['Access-Control-Allow-Origin'] = '*'
headers['Access-Control-Allow-Methods'] = 'POST, PUT, DELETE, GET, OPTIONS'
headers['Access-Control-Request-Method'] = '*'
headers['Access-Control-Allow-Header...