| 1 | // Copyright (c) .NET Foundation. All rights reserved.
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| 2 | // Licensed under the MIT License.
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| 3 |
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| 4 | export function isEnvironmentVariableSet(val: string | boolean | number | undefined | null): boolean {
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| 5 | return !/^(false|0)?$/i.test(val === undefined || val === null ? '' : String(val));
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| 6 | }
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