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Which is faster: Stack allocation or Heap allocation
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Stack allocation is much faster since all it really does is move the stack pointer.
Using memory pools, you can get comparable performance out of heap allocation, but that comes with a slight added complexity and its own headaches...
What is “entropy and information gain”?
...: female
| | ends-vowel=0: male
length>=7
| length=5: male
basically each node represent a test performed on a single attribute, and we go left or right depending on the result of the test. We keep traversing the tree until we reach a leaf node which contains the class prediction (m or f)...
SQLite INSERT - ON DUPLICATE KEY UPDATE (UPSERT)
...f some other process inserted in between.
– Robin Lavallée
Aug 12 at 15:31
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How can I push a specific commit to a remote, and not previous commits?
... commits, not to be confused with the top, first, or tip commit, which are all ambiguous descriptions in my opinion. The commit needs to the oldest of your commits, i.e. the furthest from your most recent commit. If it's not the oldest commit then all commits from your oldest, local, non-pushed SHA ...
How do you automatically set the focus to a textbox when a web page loads?
How do you automatically set the focus to a textbox when a web page loads?
13 Answers
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Find a Pull Request on Github where a commit was originally created
...pull requests are a great way to quickly "grok" a project as, instead of small atomic changes to the source, you get larger groupings of logical changes. Analogous to organizing the lines in your code into related "stanzas" to make it easier to read.
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Is there a command like “watch” or “inotifywait” on the Mac?
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fswatch
fswatch is a small program using the Mac OS X FSEvents API to monitor a directory.
When an event about any change to that directory is received, the specified
shell command is executed by /bin/bash
If you're on GNU/Linux,
inotifywatch (par...
What REST PUT/POST/DELETE calls should return by a convention?
... should the body be for a POST or DELETE response?
– Cam Jackson
Jul 3 '14 at 12:21
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Well, that'...
Any idea why I need to cast an integer literal to (int) here?
...In general, you should not cast to Integer class. This involves something called auto-boxing, and can cause some subtle errors in your code.
The prefered method of doing what you want is:
Integer i6 = Integer.valueOf(-128)
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Disabling browser caching for all browsers from ASP.NET
... are required to get different browsers to behave correctly. It would be really great to get a reference bit of code commented to indicate which works for all browsers and which is required for particular browser, including versions.
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