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Java String - See if a string contains only numbers and not letters
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If you look at the code of toCharArray, it is allocating a char array and copying the chars (i think that could be expensive). What about if you just iterate the string using an index and charAt, would it be faster? Would be interesting also if you could add the soluti...
python requests file upload
...Disposition": "attachment; filename=" + f1.name, "Authorization": "JWT " + token}
res= requests.post(url,data,header)
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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 ...
How to convert image to byte array
...eeling it might have had something to do with a 4K byte boundary in memory allocation. But that could easily be wrong. I switched to using a MemoryStream with a BinaryFormatter and I was able to become very consistent as tested with over 250 different test images of varying formats and sizes, loop...
Parsing HTML into NSAttributedText - how to set font?
... self.font.pointSize]];
self.attributedText = [[NSAttributedString alloc] initWithData:[string dataUsingEncoding:NSUnicodeStringEncoding]
options:@{NSDocumentTypeDocumentAttribute: NSHTMLTextDocumentType,
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How can I turn a List of Lists into a List in Java 8?
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Good alternative suggestion that avoids some unnecessary allocations. Would be interesting to see the top heap usage of this when working with some larger collections, to see how they compare to each other.
– Per Lundberg
Jul 10 '19 at 12:51
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How can I print the contents of a hash in Perl?
I keep printing my hash as # of buckets / # allocated.
How do I print the contents of my hash?
11 Answers
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Is it a bad practice to catch Throwable?
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How do you know what was allocated and what wasn't prior to the OOME? All bets are off once you get that, even inside a J2EE container like Tomcat or JBoss.
– bmauter
May 31 '13 at 2:05
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How to use underscore.js as a template engine?
...I personally prefer the Mustache style syntax. You can adjust the template token markers to use double curly braces:
_.templateSettings.interpolate = /\{\{(.+?)\}\}/g;
var template = _.template('<li>{{ name }}</li>');
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How to identify platform/compiler from preprocessor macros?
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See: http://predef.sourceforge.net/index.php
This project provides a reasonably comprehensive listing of pre-defined #defines for many operating systems, compilers, language and platform standards, and standard libraries.
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