cast
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cast
Alters the data-type of the previous function without altering its output
Description
cast
alters the data-type annotation for a pipe.
The contents of the pipeline are preserved, only the reported data-type is changed.
Additionally cast
can be used to define the output type of a function.
Usage
Changing type annotation for a pipe
<stdin> -> cast data-type -> <stdout>
<stdin> :data-type: command
Defining the output type of a function
cast data-type
Examples
As a command
» out {"Array":[1,2,3],"Map":{"String": "Foobar","Number":123.456}} \
-> cast json
{"Array":[1,2,3],"Map":{"String": "Foobar","Number":123.456}}
As a token
» out {"Array":[1,2,3],"Map":{"String": "Foobar","Number":123.456}} \
-> :json: cat
{"Array":[1,2,3],"Map":{"String": "Foobar","Number":123.456}}
Defining data-type
» function example {
cast json
out '{"foo": "bar"}'
}
» example -> debug -> [[ /Data-Type/Murex ]]
json
Please note you'd normally use the Object Builder to create JSON objects.
Detail
If you want to reformat the stdin into the new data type then use format
instead.
See Also
%{}
Object Builder: Quickly generate objects (dictionaries / maps)format
: Reformat one data-type into another data-typeout
: Print a string to the stdout with a trailing new line charactertout
: Print a string to the stdout and set it's data-type
This document was generated from builtins/core/typemgmt/types_doc.yaml.