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export type NonEmptyArray<T> = [T, ...T[]];
export function hasValue<T>(value: T): value is NonNullable<T> {
return value !== undefined && value !== null;
}
export function isInRanges(value: number, ranges: [number, number][]): boolean {
return ranges.some(([min, max]) => value >= min && value <= max);
}
export function isNumber(number: unknown): number is number {
return !Number.isNaN(number);
}
export function isAccountNumber(value: string): boolean {
return /^\d{10,16}$/.test(value);
}
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