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unique object identifier in javascript
...niqueId());
Take care to make sure that whatever member you use to internally store the unique ID doesn't collide with another automatically created member name.
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intellij - spring is not being recognized (Unmapped Spring configuration)
I am using IntelliJ IDEA and all plugins for Spring are activated,
but when I load my Maven project I have the following error:
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JavaScript hard refresh of current page
...aScript?
Hard refresh means getting a fresh copy of the page AND refresh all the external resources (images, JavaScript, CSS, etc.).
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Does name length impact performance in Redis?
I like to use verbose names in Redis, for instance set-allBooksBelongToUser:$userId .
4 Answers
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List tables in a PostgreSQL schema
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In all schemas:
=> \dt *.*
In a particular schema:
=> \dt public.*
It is possible to use regular expressions with some restrictions
\dt (public|s).(s|t)
List of relations
Schema | Name | Type | Owner
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Should I use Java date and time classes or go with a 3rd party library like Joda Time?
I'm creating a web based system which will be used in countries from all over the world. One type of data which must be stored is dates and times.
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What is the difference between Gemfile and Gemfile.lock in Ruby on Rails
...emfile.lock file is where Bundler records the exact versions that were installed. This way, when the same library/project is loaded on another machine, running bundle install will look at the Gemfile.lock and install the exact same versions, rather than just using the Gemfile and installing the most...
Whitespace Matching Regex - Java
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Yeah, you need to grab the result of matcher.replaceAll():
String result = matcher.replaceAll(" ");
System.out.println(result);
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Crontab - Run in directory
...t I would like it to execute it from a particular directory so it can find all the files it needs, since the application has a bunch of relative paths.
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Linux find file names with given string
I'm on Ubuntu, and I'd like to find all files in the current directory and subdirectories whose name contains the string "John". I know that grep can match the content in the files, but I have no idea how to use it with file names. Any help would be appreciated.
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