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raine/index.js

Last active October 6, 2015 17:36
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index.js
const lineLens = lens(split('\n'), join('\n'));
const mapLines = curry((fn, str) =>
over(lineLens, map(fn), str));
const adjustLine = curry((fn, n, str) =>
over(lineLens, adjust(fn, n), str))
mapLines(toUpper, 'foo\nbar') // => 'FOO\nBAR'
adjustLine(toUpper, 0, 'foo\nbar') // => 'FOO\nbar"
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