Structured files: use io

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10

use io

write['ex_people.csv', 'name,age\nann,30\nbob,25\n']
rows = csv['ex_people.csv']
log[len[rows]]
log[rows[1].name]
ls_lines = lines['ex_people.csv']
log[len[ls_lines]]
log[ls_lines[0]]
rm['ex_people.csv']

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bob
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name,age

csv[] gives an array of maps (every cell a string) — handy for small config-shaped files. For real tables use frame.load (chapter 10), which types the columns and knows how to filter, sort, and group.

Reference: spec section 13 (io).