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22 lines
No EOL
449 B
JavaScript
22 lines
No EOL
449 B
JavaScript
"use strict";
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module.exports = (arr_, pred) => {
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const arr = arr_ || [],
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spans = []
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let span = { label: undefined,
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items: [arr.first] }
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arr.forEach (x => {
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const label = pred (x)
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if ((span.label !== label) && span.items.length) {
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spans.push (span = { label: label, items: [x] }) }
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else {
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span.items.push (x) } })
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return spans
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} |