tutorials
What should be monitored on a busy Database/MysQL server?
Submitted by Webmaster on January 20, 2023
On a busy MySQL server, some key metrics that should be actively monitored include:
Category:
Database Management Systems > MySQL > Monitoring
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Options to store data locally in a flutter app
Submitted by Webmaster on January 15, 2023
There are several options to store data locally in a Flutter app, here are a few popular options.
Category:
Web Development > Dart > Resources
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Dart - x positional argument(s) expected, but 0 found.
Submitted by Webmaster on January 09, 2023
The error "4 positional argument(s) expected, but 0 found." in Dart usually indicates that you are trying to call a function or constructor with the wrong number of arguments. This error occurs when the function or constructor is defined to take a certain number of arguments, but you are calling it with a different number of arguments.
Category:
Web Development > Dart > Tips and Tricks
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?? - the null-coalescing operator in Dart
Submitted by Webmaster on January 09, 2023
In Dart, the ?? operator is known as the null-coalescing operator. It is used to provide a default value for an expression that may be null.
Category:
Web Development > Dart > Tips and Tricks
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Pass an object through navigator.pushnamed using provider
Submitted by Webmaster on January 09, 2023
Here is an example of how you can pass an object through a route using the Navigator.pushNamed() method and Provider in Flutter.
Category:
Web Development > Dart > Tips and Tricks
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How to create a constructor that clones another object in Dart
Submitted by Webmaster on January 09, 2023
Here is an example of how you can create a constructor that clones an object in Dart.
Category:
Web Development > Dart > Tips and Tricks
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How to speed up a Mysql replica?
Submitted by Webmaster on January 09, 2023
There are several ways you can try to speed up a MySQL replica. Here are some ideas:
Category:
Database Management Systems > MySQL > Administration
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Bash script to compare remote directory's files using file size
Submitted by Webmaster on January 09, 2023
Here is a bash script that compares two remote directories and their subdirectories using file size to check for differences:
Category:
Operating Systems > Linux > Tips and Tricks
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Script to transfer files to remote server with verification
Submitted by Webmaster on January 09, 2023
Here is a bash script that uses rsync to transfer a set of files to another remote server and verifies the contents were transferred correctly.
Category:
Operating Systems > Linux > Tips and Tricks
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How to write a function that generates random string in Javascript?
Submitted by Webmaster on January 09, 2023
To write a function that generates a random string in JavaScript, you can use the following code:
Category:
Web Development > Javascript > Tips and Tricks
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