/** * Converts a string representation of a number in any base (2-36) to decimal. * * Parses a string containing digits and letters representing a number in the specified * base and converts it to its decimal (base 10) equivalent. Supports negative numbers * and uses case-insensitive letter parsing for bases greater than 10. * * @param value - String representation of the number (must be non-empty) * @param base - Numeric base from 2 to 36 (2=binary, 8=octal, 16=hex, etc.) * @returns Decimal number equivalent of the input * @throws {Error} When value is empty/invalid, base is out of range, or invalid digits found * * @example * Common base conversions: * ```typescript * import { fromBase } from '@winglet/common-utils'; * * // Binary (base 2) * console.log(fromBase('1010', 2)); // 10 * console.log(fromBase('1111', 2)); // 15 * * // Octal (base 8) * console.log(fromBase('17', 8)); // 15 * console.log(fromBase('777', 8)); // 511 * * // Hexadecimal (base 16) * console.log(fromBase('FF', 16)); // 255 * console.log(fromBase('1A3', 16)); // 419 * ``` * * @example * Advanced base conversions and edge cases: * ```typescript * // High bases with letters * console.log(fromBase('ZZ', 36)); // 1295 (35*36 + 35) * console.log(fromBase('10', 36)); // 36 * * // Negative numbers * console.log(fromBase('-1010', 2)); // -10 * console.log(fromBase('-FF', 16)); // -255 * * // Case insensitive * console.log(fromBase('abc', 16)); // 2748 (same as 'ABC') * console.log(fromBase('ABC', 16)); // 2748 * ``` * * @remarks * **Supported Bases:** * - Base 2 (binary): digits 0-1 * - Base 8 (octal): digits 0-7 * - Base 10 (decimal): digits 0-9 * - Base 16 (hexadecimal): digits 0-9, A-F * - Base 36 (maximum): digits 0-9, A-Z * * **Use Cases:** * - Converting user input from different numeric systems * - Parsing configuration files with different base representations * - Educational tools for teaching number systems * - Cryptography and encoding/decoding operations * - Computer science algorithms requiring base conversion * - Data format parsing (hex colors, binary flags, etc.) * * **Performance:** O(n) time complexity where n is the length of the input string. * Space complexity is O(1) excluding input string. */ export declare const fromBase: (value: string, base: number) => number;