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andeemarks/format-board-as-fen.js

Created May 8, 2019 06:53
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Adam Woods' implementation of FEN formatting using match.length to reduce consecutive spaces to numbers
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format-board-as-fen.js
export default board =>
`${chunk(board, 8)
.map(row => row.join(''))
.map(str => str.replace(/\.+/g, match => match.length))
.join('/')} w - - 0 1`;
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