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Read a variable in bash with a default value
... cases below, word is subject to tilde expansion, parameter expansion, command substitution, and arithmetic expansion.
So if you use webpath=${webpath:-~/httpdocs} you will get a result of /home/user/expanded/path/httpdocs not ~/httpdocs, etc.
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Row count with PDO
...doing an extra database query. I assume he has already done a select query and now wants to know how many rows were returned.
– nickf
May 19 '09 at 15:17
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How to add extra info to copied web text
...copy event, then append a hidden container with our extra info to the dom, and extend the selection to it.
This method is adapted from this article by c.bavota. Check also jitbit's version for more complex case.
Browser compatibility: All major browsers, IE > 8.
Demo: jsFiddle demo.
Javascript ...
Sending images using Http Post
I want to send an image from the android client to the Django server using Http Post. The image is chosen from the gallery. At present, I am using list value name Pairs to send the necessary data to the server and receiving responses from Django in JSON. Can the same approach be used for images (wit...
How to include JavaScript file or library in Chrome console?
... To extend Harman's answer, I wrapped it around a JS function and use it as follows ... var _loadScript = function(path){ var script= document.createElement('script'); script.type= 'text/javascript'; script.src= path; document.head.appendChild(script); } _loadScript('documentcloud...
How do you express binary literals in Python?
... answered Aug 16 '08 at 12:35
Andreas ThomasAndreas Thomas
3,81033 gold badges2020 silver badges1515 bronze badges
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Updating Bootstrap to version 3 - what do I have to do?
I'm new to Bootstrap and have the older version 2.3.2.
8 Answers
8
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How to avoid long nesting of asynchronous functions in Node.js
... that data from my DB. I'm just a newbie in Node.js, so as far as I understand, if I want to use all of them in a single page (HTTP response) I'd have to nest them all:
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SVN undo delete before commit
...vn revert deletedDirectory
Here's the documentation for the svn revert command.
EDIT
If deletedDirectory was deleted using rmdir and not svn rm, you'll need to do
svn update deletedDirectory
instead.
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How to get the last value of an ArrayList
...seem very efficient to me. I come from C++, where there are actual front() and back() methods on the list object, that are internally implemented with head and tail references. Is there a similar mechanism in Java?
– Brady
Oct 13 '14 at 9:18
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