Tutorial by Examples: debug

Debugging by raising exceptions is far easier than squinting through print log statements, and for most bugs, its generally much faster than opening up an irb debugger like pry or byebug. Those tools should not be your first step. Debugging Ruby/Rails Quickly: 1. Fast Method: Raise an Exceptio...

Its easy to get lost while debugging the hiearchy. You can use PHP's built in command debug_backtrace. Put the next snippet inside any template you want to debug and view the generated page: <!-- <?php print_r( debug_backtrace() ) ?> -->

To debug a server instance, start in debug mode. To do so, configure these parameters to be passed to the server: -Xdebug -Xrunjdwp:transport=dt_socket,address=8000,server=y,suspend=n to setenv.bat(Windows) or setenv.sh(Unix) These initialize the server in debug mode, and listen for debug reque...

Official Apex Debugger Realtime debugging Force.com IDE requires special licensing from salesforce Welkin Suit Log replay debugging Stand alone IDE Subscription required Illuminated Cloud: Log replay debugging JetBrains Extension Subscription required Salesfor...

Debugging takes time and effort. Instead of chasing bugs with a debugger, consider spending more time on making your code better by: Write and run Tests. Python and Django have great builtin testing frameworks - that can be used to test your code much faster than manually with a debugger. Writ...

CMAKE_MINIMUM_REQUIRED(VERSION 2.8.11) SET(PROJ_NAME "myproject") PROJECT(${PROJ_NAME}) # Configuration types SET(CMAKE_CONFIGURATION_TYPES "Debug;Release" CACHE STRING "Configs" FORCE) IF(DEFINED CMAKE_BUILD_TYPE AND CMAKE_VERSION VERSION_GREATER "2.8"...

Module Module1 Sub Main() Debug.WriteLine("This line will be shown in the Visual Studio output console") Console.WriteLine("Press a key to exit") Console.ReadKey() Debug.WriteLine("End of application") End Sub End Modul...

Module Module1 Sub Main() Debug.WriteLine("Starting aplication") Debug.Indent() LoopAndDoStuff(5) Debug.Unindent() Console.WriteLine("Press a key to exit") Console.ReadKey() Debug.WriteLine("End of a...

At the beginning of your application, your must add a TextWriterTraceListener to the Listeners list of the Debug class. Module Module1 Sub Main() Debug.Listeners.Add(New TextWriterTraceListener("Debug of " & DateTime.Now.ToString() & ".txt")) D...

If you start your application on Linux, use the proxy for debugging via port, for example: socat TCP-LISTEN:9958,fork TCP:127.0.0.1:5858 & Use port 9958 for remote debugging then.

Open the project folder in VScode. Sample here i am setting break point in home controller. Now click the debug option. add debug configuration like below. Make sure .Net core Launch(web) is selected. You can see break point will hit , once you start debugging by press run icon. Then gi...

WP_DEBUG is a PHP constant (a permanent global variable) that can be used to trigger the "debug" mode throughout WordPress. It is assumed to be false by default and is usually set to true in the wp-config.php file on development copies of WordPress. define( 'WP_DEBUG', true ); define( 'W...

In your custom application class, override the onCreate() method, add the line below: CleverTapAPI.setDebugLevel(1);

case thing of Cat -> meow Bike -> ride Sandwich -> eat _ -> Debug.crash "Not yet implemented" You can use Debug.crash when you want the program to fail, typically used when you're in the middle of implementing a case ex...

Run-time memory management with Rc can be very useful, but it can also be difficult to wrap one's head around, especially if your code is very complex and a single instance is referenced by tens or even hundreds of other types in many scopes. Writing a Drop trait that includes println!("Droppi...

$ cat hello.sh #!/bin/bash echo "Hello World" $ bash -x hello.sh + echo Hello World Hello World The -x argument enables you to walk through each line in the script. One good example is here: $ cat hello.sh #!/bin/bash echo "Hello World\n" adding_string_to_number=...

WP_DEBUG_LOG is a companion to WP_DEBUG that causes all errors to also be saved to a debug.log log file inside the /wp-content/ directory. This is useful if you want to review all notices later or need to view notices generated off-screen (e.g. during an AJAX request or wp-cron run). //enable defi...

WP_DEBUG_DISPLAY is another companion to WP_DEBUG that controls whether debug messages are shown inside the HTML of pages or not. The default is 'true' which shows errors and warnings as they are generated. Setting this to false will hide all errors. This should be used in conjunction with WP_DEBUG_...

SCRIPT_DEBUG is a related constant that will force WordPress to use the "dev" versions of core CSS and JavaScript files rather than the minified versions that are normally loaded. This is useful when you are testing modifications to any built-in .js or .css files. Default is false. //enab...

The following code, inserted in your wp-config.php file, will log all errors, notices, and warnings to a file called debug.log in the wp-content directory. It will also hide the errors so they do not interrupt page generation. // Enable WP_DEBUG mode define( 'WP_DEBUG', true ); // Enable Debug...