Question

我想将这本PHP的文字转换成文字(nodejs)。

$fruits = [
     APPLE => [
         color => red ,
         size => small 
    ],
     BANANA =>[
         color => yellow ,
         size => middle 
    ]
];

echo $fruits[ APPLE ][ color ];

type info = {
  color: string,
  size: string
}

const fruits[ APPLE ]: info = {color: red ,size: small }

我有了一个错误。

Answer 1

In TypeScript, you can define an object with a similar structure to your PHP array.

type FruitInfo = {
  color: string;
  size: string;
};

const fruits: Record<string, FruitInfo> = {
  APPLE: {
    color:  red ,
    size:  small ,
  },
  BANANA: {
    color:  yellow ,
    size:  middle ,
  },
};

console.log(fruits[ APPLE ].color);

Answer 2

It is convention to capitalise the first letter of type for clarity and readability.

type Info = {
  color: string,
  size: string
}

Not correct JS syntax.

const fruits[ APPLE ]: info = {color: red ,size: small }

const fruits = {
  APPLE: {
    color:  red ,
    size:  small
  }
}

Assign a type directly or use a type alias.

const fruits: { [key: string]: Info } = {
   APPLE : { color:  red , size:  small  },
   BANANA : { color:  yellow , size:  middle  }
};

type Fruits = {
 [key: string]: Info
}

const fruits: Fruits = {
   APPLE : { color:  red , size:  small  },
   BANANA : { color:  yellow , size:  middle  }
};

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