mapCreates a map from two data sources
This takes two parameters - which are code blocks - and combines them to output a key/value map in JSON.
The first block is the key and the second is the value.
map { code-block } { code-block } -> <stdout>
» map { tout json (["key 1", "key 2", "key 3"]) } { tout json (["value 1", "value 2", "value 3"]) }
{
"key 1": "value 1",
"key 2": "value 2",
"key 3": "value 3"
}
mapalter, ~>: Change a value within a
structured data-type and pass that change along the pipeline without
altering the original source inputappend: Add data to the end of an arrayprepend: Add data to the start of an arraycount: Count
items in a map, list or arrayja:
A sophisticated yet simply way to build a JSON arraya: A sophisticated yet simple way to stream an array or
list (mkarray)[ ..Range ]: Outputs a ranged subset of data from
stdin[ Index ]: Outputs an element from an array, map or
table[[ Element ]]: Outputs an element from a nested
structurejsplit: Splits stdin into a JSON array based on a regex
parameterThis document was generated from builtins/core/arraytools/map_doc.yaml.
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Last built on Wed Dec 10 23:24:04 UTC 2025 against commit ec623f9ec623f9e05b9cd816d1c93e90c807e23ff173cd9.
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