EN
TypeScript - interface constructor
11 points
In TypeScript interface with a constructor can not be implemeneted by any class, but it is possible use constructor interface in following way.
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interface ISquare {2
getName() : string;3
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// other method declarations...5
}6
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interface ISquareConstructor {8
new (name : string) : ISquare;9
}10
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class LocalSquare implements ISquare {12
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public constructor(private name : string) {14
// nothing here...15
}16
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public getName() : string {18
return this.name;19
}20
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// other method definitions...22
}23
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function createSquare(builder : ISquareConstructor, name : string) : ISquare {25
// ISquareConstructor -> new (name : string) : ISquare26
return new builder(name);27
}28
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let square = createSquare(LocalSquare, 'Square');30
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console.log(square.getName());32
// other method usage...Output:
SquareRun it online here.
