| 1 | /**
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| 2 | * @ignore
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| 3 | */
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| 4 | export async function createGrouping(source, keySelector, elementSelector) {
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| 5 | let map = new Map();
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| 6 | for await (let item of source) {
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| 7 | let key = await keySelector(item);
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| 8 | let grouping = map.get(key);
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| 9 | if (!map.has(key)) {
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| 10 | grouping = [];
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| 11 | map.set(key, grouping);
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| 12 | }
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| 13 | let element = await elementSelector(item);
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| 14 | grouping.push(element);
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| 15 | }
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| 16 | return map;
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| 17 | }
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| 18 |
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| 19 | //# sourceMappingURL=_grouping.mjs.map
|