13 lines
312 B
TypeScript
13 lines
312 B
TypeScript
import { MAX_SAFE_INTEGER, reIsUint } from './_common'
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export function isIndex(value: any, length?: any) {
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length = length == null ? MAX_SAFE_INTEGER : length
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return (
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!!length &&
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(typeof value == 'number' || reIsUint.test(value)) &&
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value > -1 &&
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value % 1 == 0 &&
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value < length
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)
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}
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