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What is the maximum length of latitude and longitude? [closed]
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More on lat/lng precision: mysql.rjweb.org/doc.php/latlng#representation_choices
– Rick James
Mar 4 '19 at 0:08
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Large, persistent DataFrame in pandas
...(here's a tedious one: you could transcribe the file row-by-row into a pre-allocated NumPy array or memory-mapped file--np.mmap), but it's one I'll be working on in the near future. Another solution is to read the file in smaller pieces (use iterator=True, chunksize=1000) then concatenate then with ...
What's the difference between unit tests and integration tests? [duplicate]
... They usually require resources like database instances and hardware to be allocated for them. The integration tests do a more convincing job of demonstrating the system works (especially to non-programmers) than a set of unit tests can, at least to the extent the integration test environment resemb...
Keystore type: which one to use?
...S11, for PKCS#11 libraries, typically for accessing hardware cryptographic tokens, but the Sun provider implementation also supports NSS stores (from Mozilla) through this.
BKS, using the BouncyCastle provider (commonly used for Android).
Windows-MY/Windows-ROOT, if you want to access the Windows ce...
.NET HttpClient. How to POST string value?
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this works for me, work on php webservice that is calling $company_id = $_POST("company_id"); like that. If I send as json, php cannot work.
– TPG
Mar 19 at 8:38
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SQL injection that gets around mysql_real_escape_string()
...et_charset() / $mysqli->set_charset() / PDO's DSN charset parameter (in PHP ≥ 5.3.6)
OR
Don't use a vulnerable character set for connection encoding (you only use utf8 / latin1 / ascii / etc)
You're 100% safe.
Otherwise, you're vulnerable even though you're using mysql_real_escape_string().....
Remove characters from C# string
...iency? Won't regular expressions be more efficient in sense of new strings allocations?
– Marek
Nov 19 '18 at 9:38
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What does the line “#!/bin/sh” mean in a UNIX shell script?
...execute the script.
e.g.
#!/usr/bin/perl <--perl script'
#!/usr/bin/php <-- php script
#!/bin/false <--- do-nothing script, because false returns immediately anyways.
It's implemented as a comment so that anything coming in that line will not "relevant" to the interpreter specified. e...
HTML table headers always visible at top of window when viewing a large table
...n be added to a Drupal theme using drupal_add_js() in the theme's template.php as follows:
drupal_add_js('misc/tableheader.js', 'core');
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When should I create a destructor?
...en would the fourth field initializer run? Never. But the object is still allocated and must be finalized. Heck, you don't even have a guarantee that fields of type double were fully initialized when the dtor runs. There could have been a thread abort halfway through writing the double and now the ...