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44 lines
979 B
Markdown
44 lines
979 B
Markdown
+++
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title = "Tuple Operations"
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weight = 2
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sort_by = "weight"
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in_search_index = true
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+++
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The UCG tuples modules can be imported like so `let t = import "std/tuples.ucg";`
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and contains a number of useful operations on tuples.
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## fields
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The `fields` module retrieves all the field names in a tuple. It has one
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parameter.
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* `tpl` which is required and is the tuple to process.
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```
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let tpl = import "std/tuples.ucg";
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tpl.fields{tpl={foo=1, bar=2}} == ["foo", "bar"];
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```
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## values
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The `values` module retrieves all the values in a tuple. It has one parameter.
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* `tpl` which is required and is the tuple to process.
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```
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let tpl = import "std/tuples.ucg";
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tpl.values{tpl={foo=1, bar=2}} == [1, 2];
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```
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## iter
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The `iter` module retrieves a list of all the field and value pairs in a tuple.
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It has one parameter.
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* `tpl` which is required and is the tuple to process.
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```
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let tpl = import "std/tuples.ucg";
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tpl.enumerate{tpl={foo=1, bar=2}} == [["foo", 1], ["bar", 2]];
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``` |