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in Technique[技术] by (71.8m points)

如何写 元组(tuple) 类型的接口(interface)

// ----------------------
interface arg {
  [index:number]:[number,string,boolean]
}
const arr :arg = [[1,'1',true]]
// ----------------------

// 改造要求:需要将 [number,string,boolean] 抽离出来做一个新的接口
// item 类型是 元组 [number,string,boolean] 
// newarg 类型是 item[]
interface item {  
  // 不会写
}
interface newarg {
  [index:number]:item
}

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type Item = [number, string, boolean]

interface newarg {
  [index:number]: Item
}

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