回答編集履歴
3
コメントを受けてIDをユニークに
test
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@@ -31,3 +31,49 @@
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);
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```
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### コメントを受けてIDをユニークに
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```javascript
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(
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( {itemDict, productsIds} ) =>
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[...new Set(
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[].concat(
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...productsIds.map( e => itemDict[e] )
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).map( e => JSON.stringify(e) )
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)].map( e => JSON.parse(e) )
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)({
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itemDict:
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Object.assign( ...itemList.map( ({id,items}) => ({[id]:items}) ) )
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,
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productsIds:
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[...new Set(
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[].concat(
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...orderList.map( ({products}) => products )
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)
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)]
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,
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});
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```
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2
こっちのほうがスマートかな……
test
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@@ -16,7 +16,7 @@
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)(
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itemList.
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Object.assign( ...itemList.map( ({id,items}) => ({[id]:items}) ) ),
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[...new Set(
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1
こっちのほうが読みやすい、かな?
test
CHANGED
@@ -6,19 +6,11 @@
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(
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( itemDict, o
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( itemDict, productsIds ) =>
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[].concat(
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...[...new Set(
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-
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[].concat(
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-
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...orderList.map( ({products}) => products )
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-
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)
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...productsIds.map( e => itemDict[e] )
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)
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@@ -26,7 +18,15 @@
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itemList.reduce( (d, {id,items}) => ( d[id]=items,d ), {} ),
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[...new Set(
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-
o
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[].concat(
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...orderList.map( ({products}) => products )
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)
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)]
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);
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