@discipl/law-reg/dist/utils/big_util.js

Discipl Law and Regulation Compliance Library

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.BigUtil = void 0;

class BigUtil {
  static genericOp(a, b, functionName, fallbackFunction, commutativeFunctionName = functionName) {
    if (typeof a === 'undefined' || typeof b === 'undefined') {
      return undefined;
    }

    if (a[functionName]) {
      return a[functionName](b);
    }

    if (b[commutativeFunctionName]) {
      return b[commutativeFunctionName](a);
    }

    return fallbackFunction();
  }

  static isNumeric(n) {
    const NUMERIC = /^-?(\d+(\.\d*)?|\.\d+)(e[+-]?\d+)?$/i;
    return NUMERIC.test(n + '');
  }

  static add(a, b) {
    return this.genericOp(a, b, 'plus', () => a + b);
  }

  static multiply(a, b) {
    return this.genericOp(a, b, 'times', () => a * b);
  }

  static equal(a, b) {
    return this.genericOp(a, b, 'eq', () => a === b);
  }

  static lessThan(a, b) {
    return this.genericOp(a, b, 'lt', () => a < b, 'gt');
  }

  static greaterThan(a, b) {
    return this.genericOp(a, b, 'gt', () => a > b, 'lt');
  }

}

exports.BigUtil = BigUtil;