blob: c49992fc3aa4e9f086d2c8752afaff49877101e1 [file] [log] [blame]
// 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 false if searchString is not found with a given position.
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.
16. Otherwise, return false.
...
---*/
var str = 'The future is cool!';
assert.sameValue(
str.startsWith('The future', 1), false,
'str.startsWith("The future", 1) === false'
);
assert.sameValue(
str.startsWith(str, 1), false,
'str.startsWith(str, 1) === false'
);