Tutorial by Topics: handling

class Meter(val meters: Double) extends AnyVal type Meter = Double It is recommended to use value classes for units or a dedicated library for them.

Oracle produces a variety of exceptions. You may be surprised how tedious it can be to have your code stop with some unclear message. To improve your PL/SQL code's ability to get fixed easily it is necessary to handle exceptions at the lowest level. Never hide an exception "under the carpet&quo...

{ -code- } stopped { -error- }{ -no-error- } ifelse % error catching frame $error /errorname get % stackunderflow typecheck rangecheck etc $error /newerror get % bool. put false to deactivate error $error /ostack get % copy of operand stack at point of error errordict /stackoverf...

@ExceptionHandler(ExceptionToBeHandled.class) @ExceptionHandler({ExceptionToBeHandled.class, AnotherExceptionToBeHandled.class})

ParameterDetailsstopCalledThis value tells you how a user disconnected, if its set to true then the user explicitly closed the connection, otherwise they timed out. It's worth noting that at while in these functions you still have access to the Context, therefore you can get the connectionId and ...

To serve static files (Images, CSS, JS files, etc.) use the express.static middleware function. Pass the name of the directory that contains the assets to express.static to serve the files directly. (Look to the Basic Example) You can use multiple directories, simply call the express.static mult...

export PS1="something" # displayes when bash awaits a command to be typed in export PS2="anotherthing" # dsplayed when statement extends to more lines export PS3="question prompt for select statement" # seldomly used prompt for select. First set PS3 to your need...

Don't forget to create custom exceptions if you have to Both the resolver and handler must be beens discovered by Spring If you are on Spring 3.2 or higher, you can use @ContrllerAdvice Source

When you need to handle time information for a worldwide user base in MySQL, use the TIMESTAMP data type in your tables. For each user, store a user-preference timezone column. VARCHAR(64) is a good data type for that column. When a user registers to use your system, ask for the time zone value. ...

NFS is the most common way to share disk between computers in linux. It allows user on a client computer to access files over a network much like local storage is accessed. Here we see how to configure Puppet to manage mounting and serving NFS drives. ParameterDetailsnameThe path to local directory...

This topic discuss about Error Types & Error Handling in PowerShell.

A column is NULL when it has no value, regardless of the data type of that column. A column should never be compared to NULL using this syntax a = NULL as the result would be UNKNOWN. Instead use a IS NULL or a IS NOT NULL conditions. NULL is not equal to NULL. To compare two expressions where null...

CodeIgniter lets you build error reporting into your applications using the functions described below. In addition, it has an error logging class that permits error and debugging messages to be saved as text files.