// Copyright (C) 2015 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
es6id: 21.1.3.18
description: >
  Returns true if searchString appears as a substring of the given string.
info: |
  21.1.3.18 String.prototype.startsWith ( searchString [ , position ] )

  ...
  11. Let len be the number of elements in S.
  12. Let start be min(max(pos, 0), len).
  13. Let searchLength be the number of elements in searchStr.
  14. If searchLength+start is greater than len, return false.
  15. If the sequence of elements of S starting at start of length searchLength
  is the same as the full element sequence of searchStr, return true.
  ...
---*/

var str = 'The future is cool!';

assert(str.startsWith('The '), 'str.startsWith("The ") === true');
assert(str.startsWith('The future'), 'str.startsWith("The future") === true');
assert(str.startsWith(str), 'str.startsWith(str) === true');