$., Meta Values (json)

State information for iteration blocks

Description

Meta Values, $., provides state information for blocks like foreach, formap, while and lambdas.

Meta Values are a specific to the block, so you will need to refer to each iteration structure's documentation to check what information is exposed via $.

Examples

» %[Monday..Friday] -> foreach day { out "$.i: $day" }
1: Monday
2: Tuesday
3: Wednesday
4: Thursday
5: Friday

Other Reserved Variables

• Numeric (str): Variables who's name is a positive integer, eg 0, 1, 2, 3 and above
• $., Meta Values (json): State information for iteration blocks
• ARGV (json): Array of the command name and parameters within a given scope
• COLUMNS (int): Character width of terminal
• EVENT_RETURN (json): Return values for events
• HOSTNAME (str): Hostname of the current machine
• MUREX_ARGV (json): Array of the command name and parameters passed to the current shell
• MUREX_EXE (path): Absolute path to running shell
• PARAMS (json): Array of the parameters within a given scope
• PWDHIST (json): History of each change to the sessions working directory
• PWD (path): Current working directory
• SELF (json): Meta information about the running scope.
• SHELL (str): Path of current shell

See Also

• For Each In List (foreach): Iterate through an array
• For Each In Map (formap): Iterate through a map or other collection of data
• Loop While (while): Loop until condition false
• [{ Lambda }]: Iterate through structured data

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This document was generated from gen/variables/meta-values_doc.yaml.