@rayyamhk/complex/lib/core/instance/toString.js

A lightweight and easy-to-use library for you to manipulate complex numbers

"use strict";

/**
 * Gets the stringified and formatted Complex Number.
 * @memberof Complex
 * @instance
 * @returns {string} The stringified and formatted Complex Number
 */
function toString() {
  var re = this.re,
      im = this.im;

  if (Number.isNaN(re) || Number.isNaN(im)) {
    return 'NaN';
  }

  if (re === 0 && im === 0) {
    return '0';
  }

  if (re === 0) {
    if (im === 1) {
      return 'i';
    }

    if (im === -1) {
      return '-i';
    }

    return "".concat(im, "i");
  }

  if (im === 0) {
    return "".concat(re);
  }

  if (im > 0) {
    if (im === 1) {
      return "".concat(re, " + i");
    }

    return "".concat(re, " + ").concat(im, "i");
  }

  if (im === -1) {
    return "".concat(re, " - i");
  }

  return "".concat(re, " - ").concat(Math.abs(im), "i");
}

module.exports = toString;