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Python truncate a long string
How does one truncate a string to 75 characters in Python?
17 Answers
17
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How to calculate a Mod b in Casio fx-991ES calculator
Does anyone know how to calculate a Mod b in Casio fx-991ES Calculator. Thanks
10 Answers
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HTTP authentication logout via PHP
...
Mu. No correct way exists, not even one that's consistent across browsers.
This is a problem that comes from the HTTP specification (section 15.6):
Existing HTTP clients and user agents typically retain authentication
information indefinitely. HTTP/1.1...
How do I test if a variable is a number in Bash?
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One approach is to use a regular expression, like so:
re='^[0-9]+$'
if ! [[ $yournumber =~ $re ]] ; then
echo "error: Not a number" >&2; exit 1
fi
If the value is not necessarily an integer, consider amending the...
iPhone: Detecting user inactivity/idle time since last screen touch
...t exception 'NSInternalInconsistencyException', reason: 'There can only be one UIApplication instance.'".. is anything else i need to do...?
– Mihir Mehta
Jun 23 '10 at 6:42
7
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Best way to convert an ArrayList to a string
...:
ArrayList<String> list = new ArrayList<String>();
list.add("one");
list.add("two");
list.add("three");
String listString = "";
for (String s : list)
{
listString += s + "\t";
}
System.out.println(listString);
In fact, a string concatenation is going to be just fine, as the ja...
What is the purpose of “return await” in C#?
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There is one sneaky case when return in normal method and return await in async method behave differently: when combined with using (or, more generally, any return await in a try block).
Consider these two versions of a method:
Task...
What do the makefile symbols $@ and $< mean?
...the above variables has two variants for
compatibility with other makes. One variant returns only the directory
portion of the value. This is indicated by appending a “D” to the
symbol, $(@D), $(<D), etc. The other variant returns only the file
portion of the value. This is indicated ...
When to use Amazon Cloudfront or S3
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Amazon S3 is designed for large-capacity, low-cost file storage in one specific geographical region.* The storage and bandwidth costs are quite low.
Amazon CloudFront is a Content Delivery Network (CDN) which proxies and caches web data at edge locations as close to users as possible.
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Convert SQLITE SQL dump file to POSTGRESQL
...mp to PostgreSQL. Even though this post has an accepted answer (and a good one at that +1), I think adding this is important.
I started looking into the solutions here and realized that I was looking for a more automated method. I looked up the wiki docs:
https://wiki.postgresql.org/wiki/Converting_...