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Last change
on this file since d24f17c was d24f17c, checked in by Aleksandar Panovski <apano77@…>, 15 months ago |
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| 1 | import { IterationOf } from '../Iteration/IterationOf';
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| 2 | import { Iteration } from '../Iteration/Iteration';
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| 3 | /**
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| 4 | * @hidden
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| 5 | */
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| 6 | export declare type _IsZero<N extends Iteration> = {
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| 7 | '-': 0;
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| 8 | '+': 0;
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| 9 | '0': 1;
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| 10 | }[N[1]];
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| 11 | /**
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| 12 | * Check whether a [[Number]] is null or not
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| 13 | * @param N to check
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| 14 | * @returns [[Boolean]]
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| 15 | * @example
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| 16 | * ```ts
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| 17 | * import {N} from 'ts-toolbelt'
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| 18 | *
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| 19 | * type test0 = N.IsZero<'0'> // True
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| 20 | * type test1 = N.IsZero<'-7'> // False
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| 21 | * type test2 = N.IsZero<'7'> // False
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| 22 | * ```
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| 23 | */
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| 24 | export declare type IsZero<N extends number> = _IsZero<IterationOf<N>>;
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