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sebinsua/expand.ts

Last active August 3, 2022 14:44
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expand.ts
type LeftRight = 'left' | 'right';
type LeftRightNet = 'left' | 'right' | 'net';
type ExpandNumericFields<Str> = Str extends `${infer Prefix}_numeric` ? `${Prefix}_numeric_${LeftRightNet}` : Str extends 'weight' ? `weight_${LeftRightNet}` : Str extends string ? `${Str}_${LeftRight}` : never;
type T1 = ExpandNumericFields<'base_numeric'>
type T2 = ExpandNumericFields<'weight'>
type T3 = ExpandNumericFields<'numeric_exposure'>
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