blob: 5b771c5a774f4e9fa5625631405cdbacf18dba4a (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
|
// Copyright 2015 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
/**
* @fileoverview Utilities for strings.
*/
goog.provide('StringUtil');
/**
* @constructor
*/
StringUtil = function() {};
/**
* Returns the length of the longest common prefix of two strings.
* @param {string} first The first string.
* @param {string} second The second string.
* @return {number} The length of the longest common prefix, which may be 0
* for an empty common prefix.
*/
StringUtil.longestCommonPrefixLength = function(first, second) {
var limit = Math.min(first.length, second.length);
var i;
for (i = 0; i < limit; ++i) {
if (first.charAt(i) != second.charAt(i)) {
break;
}
}
return i;
};
|
