40 lines
713 B
TypeScript
40 lines
713 B
TypeScript
interface Foo {
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method(a: number): string;
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optionalMethod?(a: number): string;
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property: string;
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optionalProperty?: string;
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}
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class Foo {
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additionalProperty: string;
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additionalMethod(a: number): string {
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return this.method(0);
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}
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}
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class Bar extends Foo {
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method(a: number) {
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return this.optionalProperty;
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}
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}
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var bar = new Bar();
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bar.method(0);
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bar.optionalMethod(1);
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bar.property;
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bar.optionalProperty;
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bar.additionalProperty;
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bar.additionalMethod(2);
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var obj: {
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method(a: number): string;
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property: string;
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additionalProperty: string;
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additionalMethod(a: number): string;
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};
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bar = obj;
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obj = bar;
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