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How can I tell when a MySQL table was last updated?
...g InnoDB limitations see dev.mysql.com/doc/refman/5.5/en/show-table-status.html (show table status uses information_schema.tables)
– KCD
May 9 '12 at 21:12
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Recursion or Iteration?
...sult.
http://blog.webspecies.co.uk/2011-05-31/lazy-evaluation-with-php.html
Link 2: Mastering Recursion
Most of recursion's bad reputation comes from the high costs and inefficiency in imperative languages. The author of this article talks about how to optimize recursive algorithms to make t...
MySQL: Insert record if not exists in table
...an deleting and re-inserting them: dev.mysql.com/doc/refman/5.7/en/replace.html
– Omn
Jul 13 '19 at 22:31
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Tools to get a pictorial function call graph of code [closed]
...n the command line arguments.
KcacheGrind
https://kcachegrind.github.io/html/Home.html
Test program:
int f2(int i) { return i + 2; }
int f1(int i) { return f2(2) + i + 1; }
int f0(int i) { return f1(1) + f2(2); }
int pointed(int i) { return i; }
int not_called(int i) { return 0; }
int main(int...
ActionController::InvalidAuthenticityToken
...onrails.org/classes/ActionController/RequestForgeryProtection/ClassMethods.html
Note added by barlop- Rails 4.2 deprecated skip_before_filter in favour of skip_before_action https://guides.rubyonrails.org/4_2_release_notes.html "The *_filter family of methods have been removed from the documentati...
JavaScript function in href vs. onclick
...y in separation of content from behavior/action. The argument is that your html content should remain focused solely on content, not on presentation or behavior.
The typical path these days is to use a javascript library (eg. jquery) and create an event handler using that library. It would look som...
How do you test that a Python function throws an exception?
...list of the Built-in Exceptions here: docs.python.org/3/library/exceptions.html#bltin-exceptions
– Raymond Wachaga
Feb 7 '19 at 17:51
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navbar color in Twitter Bootstrap
...e's a dirty hack...
Add this above where you render the bootstrap nav bar HTML - update the colours as required..
<style type="text/css">
.navbar-inner {
background-color: red;
background-image: linear-gradient(to bottom, blue, green);
background-repeat: repeat-x;
border:...
How to get folder path from file path with CMD
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See also: ss64.com/nt/syntax-args.html - use %~dp1 for drive and path only.
– Andrew
Oct 28 '17 at 1:36
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Iterating through a JSON object
...t('could not load page, check connection')
# read the response and DECODE
html=response.read().decode('utf8') # new python3 code
# now convert the decoded string into real JSON
loadedjson = json.loads(html)
# print to make sure it worked
print (loadedjson) # works like a charm
# iterate through ...