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Is there a limit to the length of HTML attributes?
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HTML5 is not an SGML-based language.
– William Brendel
Sep 30 '09 at 5:03
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Hiding user input on terminal in Linux script
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I've got it. My FreeBSD test was based on the code copied and pasted from your original mistaken edit of lesmana's post, which contains one important difference: you had been passing read a -d ''. When I retried it later on Linux I used the reposted version....
Why would you ever implement finalize()?
...I inherited the code and it was very buggy and had a tendency to leave database connections open. We modified the connections to contain data about when and where they were created and then implemented finalize to log this information if the connection wasn't closed properly. It turned out to be a...
Developing for Android in Eclipse: R.java not regenerating
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Apply CSS styles to an element depending on its child elements
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As far as I'm aware, styling a parent element based on the child element is not an available feature of CSS. You'll likely need scripting for this.
It'd be wonderful if you could do something like div[div.a] or div:containing[div.a] as you said, but this isn't possible....
What's the difference between integer class and numeric class in R
...he number is stored in two pieces: the exponent (like 308 above, except in base 2 rather than base 10), and the "significand" (like 1.797693 above).
Note that 'is.integer' is not a test of whether you have a whole number, but a test of how the data are stored.
One thing to watch out for is that t...
What is a good Hash Function?
...( h ^ p[i] ) * 0x01000193;
return h;
}
unsigned long long fnv_hash_1a_64 ( void *key, int len ) {
unsigned char *p = key;
unsigned long long h = 0xcbf29ce484222325ULL;
int i;
for ( i = 0; i < len; i++ )
h = ( h ^ p[i] ) * 0x100000001b3ULL;
return h;
}
Edit:
La...
AWS MySQL RDS vs AWS DynamoDB [closed]
...r while MySQL is used for relational storage. You should pick what to use based on the actual needs of your application. In fact, some applications might be well served by using both.
If, for example, you are storing data that does not lend itself well to a relational schema (tree structures, sche...
Count(*) vs Count(1) - SQL Server
..._GUID() in Oracle is quite computation intensive function.
In my test database, t_even is a table with 1,000,000 rows
This query:
SELECT COUNT(SYS_GUID())
FROM t_even
runs for 48 seconds, since the function needs to evaluate each SYS_GUID() returned to make sure it's not a NULL.
However, t...
Execute Python script via crontab
...orial here.
Look at point 3 for a guide on how to specify the frequency.
Based on your requirement, it should effectively be:
*/10 * * * * /usr/bin/python script.py
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