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* Autogenerate missing docs * Update ansi.md * Rename question mark command docs * Delete empty?.md
40 lines
889 B
Markdown
40 lines
889 B
Markdown
# each
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Run a block on each row of the table.
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## Usage
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```shell
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> each <block> <subcommand> {flags}
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```
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## Subcommands
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* each group - Runs a block on groups of `group_size` rows of a table at a time.
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* each window - Runs a block on sliding windows of `window_size` rows of a table at a time.
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## Parameters
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* `<block>` the block to run on each row
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## Flags
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* -h, --help: Display this help message
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* -n, --numbered: returned a numbered item ($it.index and $it.item)
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## Examples
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Echo the sum of each row
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```shell
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> echo [[1 2] [3 4]] | each { echo $it | math sum }
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```
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Echo the square of each integer
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```shell
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> echo [1 2 3] | each { echo ($it * $it) }
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```
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Number each item and echo a message
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```shell
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> echo ['bob' 'fred'] | each --numbered { echo $"($it.index) is ($it.item)" }
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```
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Name the block variable that each uses
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```shell
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> [1, 2, 3] | each {|x| $x + 100}
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```
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