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[typescript]interface-indexibel 은 string과 number 만 가능

string number만 가능하다.

 

interface StringArray{

    [index:number]:string,

}

 

const sa:StringArray={};

sa[100]='1';

 

interface StringDictionary{

    [index:string]:string,

}

 

const sd:StringDictionary={};

sd.numdred='a';

 

interface StringArrayDictionary{

    [index: number]:string,

    [index:string]:string,

}

 

const sad:StringArrayDictionary = {};

 

sad[100]='d';

sad['a']='a';

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