35 lines
No EOL
708 B
TypeScript
35 lines
No EOL
708 B
TypeScript
interface fnSigs {
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//functions signatures can be optional
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fn(): void;
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fn?(): void; //err
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fn2?(): void;
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}
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interface callSig {
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//Call signatures can't be optional
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(): any;
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()?: any; //err
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?(): any; //err
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}
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interface constructSig {
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//Construct signatures can't be optional
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new (): any;
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new ()?: any; //err
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new ?(): any; //err
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}
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interface propertySig {
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//Property signatures can be optional
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prop: any;
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prop?: any;
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prop2?: any;
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}
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interface indexSig {
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//Index signatures can't be optional
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[idx: number]: any;
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[idx: number]?: any; //err
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? [idx: number]: any; //err
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[idx?: number]: any; //err
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} |