Remove unused `add` module

diff --git a/src/__tests__/add-test.js b/src/__tests__/add-test.js
deleted file mode 100644 (file)
index 06259a6..0000000
--- a/src/__tests__/add-test.js
+++ /dev/null
@@ -1,107 +0,0 @@
-/**
- * Copyright 2003-present Greg Hurrell. All rights reserved.
- * Licensed under the terms of the MIT license.
- */
-
-'use strict';
-
-import add from '../add';
-
-describe('add()', () => {
-  it('adds empty numbers to 0', () => {
-    expect(add('', '', 2)).toBe('0');
-    expect(add('', '', 8)).toBe('0');
-    expect(add('', '', 10)).toBe('0');
-    expect(add('', '', 16)).toBe('0');
-
-    // Whitespace is considered "empty" as well.
-    expect(add(' ', ' ', 2)).toBe('0');
-    expect(add(' ', ' ', 8)).toBe('0');
-    expect(add(' ', ' ', 10)).toBe('0');
-    expect(add(' ', ' ', 16)).toBe('0');
-  });
-
-  it('adds an empty number to a non-empty number', () => {
-    expect(add('', '101', 2)).toBe('101');
-    expect(add('', '755', 8)).toBe('755');
-    expect(add('', '321', 10)).toBe('321');
-    expect(add('', 'ff4', 16)).toBe('ff4');
-  });
-
-  it('adds a non-empty number to an empty number', () => {
-    expect(add('101', '', 2)).toBe('101');
-    expect(add('755', '', 8)).toBe('755');
-    expect(add('321', '', 10)).toBe('321');
-    expect(add('ff4', '', 16)).toBe('ff4');
-  });
-
-  it('adds binary numbers with overflow', () => {
-    // Equal number of digits.
-    expect(add('101', '110', 2)).toBe('1011');
-
-    // More digits in first operand.
-    expect(add('1001', '101', 2)).toBe('1110');
-
-    // More digits in second operand.
-    expect(add('11', '1011', 2)).toBe('1110');
-  });
-
-  it('adds decimal numbers with overflow', () => {
-    // Equal number of digits.
-    expect(add('481', '110', 10)).toBe('591');
-
-    // More digits in first operand.
-    expect(add('1024', '85', 10)).toBe('1109');
-
-    // More digits in second operand.
-    expect(add('12', '4999', 10)).toBe('5011');
-  });
-
-  it('adds hexadecimal numbers with overflow', () => {
-    // Equal number of digits.
-    expect(add('200', 'f39', 16)).toBe('1139');
-
-    // More digits in first operand.
-    expect(add('102a', '805', 16)).toBe('182f');
-
-    // More digits in second operand.
-    expect(add('a2', '4f02', 16)).toBe('4fa4');
-  });
-
-  it('adds hexadecimal numbers case-insensitively', () => {
-    expect(add('feed', 'FACE', 16)).toBe('1f9bb');
-  });
-
-  it('ignores leading and trailing whitespace', () => {
-    expect(add('   429  ', ' 120   ', 10)).toBe('549');
-  });
-
-  it('ignores an optional 0 prefix for octal numbers', () => {
-    expect(add('0755', '002', 8)).toBe('757');
-  });
-
-  it('ignores an optional 0x prefix for hexadecimal numbers', () => {
-    expect(add('0x100', 'ff', 16)).toBe('1ff');
-    expect(add('feff', '0Xff', 16)).toBe('fffe');
-  });
-
-  it('adds arbitrary precision numbers', () => {
-    expect(add(
-      'dff026dc84b91cb70e984582a9ce6515e2100d55',
-      'cf4fee757d570bd5f3d390004312c40867a512d1',
-      16
-    )).toBe('1af4015520210288d026bd582ece1291e49b52026');
-
-  });
-
-  it('complains if given a digit that is out-of-range for the base', () => {
-    expect(() => add('10', '20', 2))
-      .toThrow('Invalid digit `2` for base `2`');
-    expect(() => add('558', '444', 8))
-      .toThrow('Invalid digit `8` for base `8`');
-    expect(() => add('404', '3*', 8))
-      .toThrow('Invalid digit `*` for base `10`');
-    expect(() => add('feedface', 'groundbeef', 16))
-      .toThrow('Invalid digit `g` for base `16`');
-  });
-});

diff --git a/src/add.js b/src/add.js
deleted file mode 100644 (file)
index 77473f5..0000000
--- a/src/add.js
+++ /dev/null
@@ -1,21 +0,0 @@
-/**
- * Copyright 2003-present Greg Hurrell. All rights reserved.
- * Licensed under the terms of the MIT license.
- *
- * @flow
- */
-
-import addDigits from './addDigits';
-import getDigits from './getDigits';
-import joinDigits from './joinDigits';
-
-/**
- * Adds two numbers `a` and `b`, both in `base` and returns the answer as a
- * string representation in `base`.
- */
-export default function add(a: string, b: string, base: number): string {
-  const aDigits = getDigits(a, base);
-  const bDigits = getDigits(b, base);
-  const result = addDigits(aDigits, bDigits, base);
-  return joinDigits(result, base);
-}