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TypeScript の Function 静的変数の型付け

TypeScript

Last updated at 2018-06-30Posted at 2018-06-30

namespace を使う。

function increment (num: number) {
  return num + 1;
}

namespace increment {
  // immutable
  export const one = 1;
  // mutable
  // export let one = 1;
}

console.log(increment(increment.one));
// 2

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