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PHP + curl, HTTP POST sample code?
... "postvar1=value1&postvar2=value2&postvar3=value3");
// In real life you should use something like:
// curl_setopt($ch, CURLOPT_POSTFIELDS,
// http_build_query(array('postvar1' => 'value1')));
// Receive server response ...
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$se...
How to change the default font size in ggplot2
I'd like to know if it is possible to change some default parameters of ggplot2 graphics, like font size for instance, for a whole R session. The idea is to avoid setting them for each plot.
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How to get just one file from another branch
...ource experiment -- app.js
By default, only the working tree is restored.
If you want to update the index as well (meaning restore the file content, and add it to the index in one command):
git restore --source experiment --staged --worktree -- app.js
# shorter:
git restore -s experiment -SW -- app...
Converting camel case to underscore case in ruby
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If you change tr("-","_") to tr("- ","_") (space added to first param), this will also turn spaces into underscores. Also, I don't think you even need to include self., or at least it works for me under Ruby 1.9.3.
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Find and replace in file and overwrite file doesn't work, it empties the file
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At least on my mac, the first suggestion doesn't work... if you're doing in-place replacement on a file, you have to specify an extension. You can, at least, pass in a zero-length extension though: sed -i '' s/STRING_TO_REPLACE/STRING_TO_REPLACE_IT/g index.html
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In SQL, what's the difference between count(column) and count(*)?
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Just curious: if you have a row with all NULLs, would count(*) still count it, or is just count(column) for all columns?
– Joel Coehoorn
Sep 12 '08 at 15:29
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Why is a ConcurrentModificationException thrown and how to debug it
...A, it so happens), but apparently randomly the code throws a ConcurrentModificationException . What is causing it and how do I fix this problem? By using some synchronization, perhaps?
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Can't execute jar- file: “no main manifest attribute”
...ond, to make a jar executable... you need to jar a file called META-INF/MANIFEST.MF
the file itself should have (at least) this one liner:
Main-Class: com.mypackage.MyClass
Where com.mypackage.MyClass is the class holding the public static void main(String[] args) entry point.
Note that there are s...
How to commit no change and new message?
How can I make a new commit and create a new message if no changes are made to files?
5 Answers
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Express.js - app.listen vs server.listen
This may be a very basic question but I simply don't get it. What is the difference between creating an app using Express.js and starting the app listening on port 1234, for example:
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