@itwin/core-bentley/lib/esm/Expect.d.ts

Bentley JavaScript core components

/**
 * Expects that a value is defined (not undefined).
 * @note Almost always, places that use this function should in the future be cleaned up to properly
 * handle undefined values instead of throwing an error.
 * @param value The value to check.
 * @param message Optional error message to be used in thrown Error.
 * @returns The original value if it is defined.
 * @throws Error if the value is undefined.
 * @internal
 */
export declare function expectDefined<T>(value: T | undefined, message?: string): T;
/**
 * Expects that a value is not null.
 * @note Almost always, places that use this function should in the future be cleaned up to properly
 * handle null values instead of throwing an error.
 * @param value The value to check.
 * @param message Optional error message to be used in thrown Error.
 * @returns The original value if it is not null.
 * @throws Error if the value is null.
 * @internal
 */
export declare function expectNotNull<T>(value: T | null, message?: string): T;
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