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yamamoto-works/group_by.js

Created December 18, 2024 13:30
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groupBy (javascript)
Raw
group_by.js
result = Object.groupBy([
{country: "jp", city: "Tokyo", name: "Ymamamoto"},
{country: "jp", city: "Osaka", name: "Yoshida"},
{country: "ko", city: "seoul", name: "Kim"},
{country: "ko", city: "busan", name: "zai"},
{country: "cn", city: "shanhai", name: "cho"},
], ({country})=> country)
console.log(result)
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