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Should I declare Jackson's ObjectMapper as a static field?
...per.
They are fully immutable, thread-safe, meaning that it is not even theoretically possible to cause thread-safety issues (which can occur with ObjectMapper if code tries to re-configure instance).
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Refresh a page using PHP
...ited Apr 10 '14 at 19:36
Peter Mortensen
26.5k2121 gold badges9292 silver badges122122 bronze badges
answered Jan 2 '14 at 7:48
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How to do associative array/hashing in JavaScript
I need to store some statistics using JavaScript in a way like I'd do it in C#:
11 Answers
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RegEx - Match Numbers of Variable Length
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This took me way too long to find ... thank you for this information!
– level42
Jul 6 at 23:33
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Removing multiple keys from a dictionary safely
...')
the_dict = {'b': 'foo'}
def entries_to_remove(entries, the_dict):
for key in entries:
if key in the_dict:
del the_dict[key]
A more compact version was provided by mattbornski using dict.pop()
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Print All JVM Flags
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Do not miss also -XX:+JVMCIPrintProperties for Graal JIT options.
Before dive into sources you can skim over following extracts and find suitable option faster:
https://chriswhocodes.com/ (OracleJDK 6/7/8/9/10/11/12, OpenJDK 8/9/10/11, Graal CE/EE, OpenJ9, Zing)
h...
Inconsistent accessibility: property type is less accessible
Please can someone help with the following error:
3 Answers
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Ruby on Rails production log rotation
...n example in config/environments/production.rb.
# Use a different logger for distributed setups
config.logger = SyslogLogger.new
That way, you log to syslog, and can use default logrotate tools to rotate the logs.
Option 2: normal Rails logs + logrotate
Another option is to simply configure lo...
Is it ok to use dashes in Python files when trying to import them?
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You should check out PEP 8, the Style Guide for Python Code:
Package and Module Names Modules should have short, all-lowercase names. Underscores can be used in the module name if it improves readability. Python packages should also have short, all-lowercase names, alt...
MongoDB: Is it possible to make a case-insensitive query?
... { foo: /^bar$/i } );
I must say, though, maybe you could just downcase (or upcase) the value on the way in rather than incurring the extra cost every time you find it. Obviously this wont work for people's names and such, but maybe use-cases like tags.
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