回答編集履歴
2
テキスト追加
test
CHANGED
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@@ -91,3 +91,117 @@
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以上、参考になれば幸いです。
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### 追記
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別案です。同じ sensor_group_id ごとのグルーピングを行うために、lodash の [_.groupBy](https://lodash.com/docs/#groupBy) を使います。
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```javascript
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const data = {
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group: [
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{
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uid: 1001,
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list: [
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{ sensor_group_id: 117 },
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{ sensor_group_id: 118 }
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]
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},
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{
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uid: 1002,
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list: [
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{ sensor_group_id: 119 },
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]
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},
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{
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uid: 1003,
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list: [
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{ sensor_group_id: 116 },
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{ sensor_group_id: 117 },
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]
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},
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]
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}
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const pairs = data.group.map(x =>
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x.list.map(y => [y.sensor_group_id, x.uid])
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).flat();
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console.log(pairs);
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const groups = _(pairs)
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.groupBy(0)
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.mapValues(v => v.map(x => x[1]).sort((x1, x2) => x1 - x2))
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.value();
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console.log(groups);
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const result = Object.entries(groups)
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.sort(([x1], [x2]) => x1 - x2)
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.map(([x, y]) => ({
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sensor_group_id: +x,
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list: y
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}));
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console.log(result);
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```
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- **動作確認用サンプル：** [https://codepen.io/jun68ykt/pen/RwWEpWb?editors=0012](https://codepen.io/jun68ykt/pen/RwWEpWb?editors=0012)
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1
テキスト追加
test
CHANGED
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@@ -48,11 +48,11 @@
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```javascript
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const result = pairs.reduce((ary, [gid, uid]) => {
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const result = pairs.reduce((ary, [gid, uid], i) => {
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const x =
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const x = i > 0 ? ary[ary.length - 1] : null;
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if (x) {
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if (x && x.sensor_group_id === gid) {
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x.list.push(uid);
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@@ -86,7 +86,7 @@
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```
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- **動作確認用サンプル：** [https://codepen.io/jun68ykt/pen/
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- **動作確認用サンプル：** [https://codepen.io/jun68ykt/pen/wvKQLYK?editors=0012](https://codepen.io/jun68ykt/pen/wvKQLYK?editors=0012)
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