| /* -*- tab-width: 2; indent-tabs-mode: nil; js-indent-level: 2 -*- */ |
| /* This Source Code Form is subject to the terms of the Mozilla Public |
| * License, v. 2.0. If a copy of the MPL was not distributed with this |
| * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ |
| |
| |
| /** |
| File Name: 15.5.4.5-6.js |
| ECMA Section: 15.5.4.5 String.prototype.charCodeAt(pos) |
| Description: Returns a number (a nonnegative integer less than 2^16) |
| representing the Unicode encoding of the character at |
| position pos in this string. If there is no character |
| at that position, the number is NaN. |
| |
| When the charCodeAt method is called with one argument |
| pos, the following steps are taken: |
| 1. Call ToString, giving it the theis value as its |
| argument |
| 2. Call ToInteger(pos) |
| 3. Compute the number of characters in result(1). |
| 4. If Result(2) is less than 0 or is not less than |
| Result(3), return NaN. |
| 5. Return a value of Number type, of positive sign, whose |
| magnitude is the Unicode encoding of one character |
| from result 1, namely the characer at position Result |
| (2), where the first character in Result(1) is |
| considered to be at position 0. |
| |
| Note that the charCodeAt function is intentionally |
| generic; it does not require that its this value be a |
| String object. Therefore it can be transferred to other |
| kinds of objects for use as a method. |
| |
| Author: christine@netscape.com |
| Date: 2 october 1997 |
| */ |
| var SECTION = "15.5.4.5-6"; |
| var VERSION = "ECMA_2"; |
| startTest(); |
| var TITLE = "String.prototype.charCodeAt"; |
| |
| writeHeaderToLog( SECTION + " "+ TITLE); |
| |
| |
| new TestCase( SECTION, |
| "var obj = true; obj.__proto__.charCodeAt = String.prototype.charCodeAt; var s = ''; for ( var i = 0; i < 4; i++ ) s+= String.fromCharCode( obj.charCodeAt(i) ); s", |
| "true", |
| eval("var obj = true; obj.__proto__.charCodeAt = String.prototype.charCodeAt; var s = ''; for ( var i = 0; i < 4; i++ ) s+= String.fromCharCode( obj.charCodeAt(i) ); s") ); |
| |
| new TestCase( SECTION, |
| "var obj = 1234; obj.__proto__.charCodeAt = String.prototype.charCodeAt; var s = ''; for ( var i = 0; i < 4; i++ ) s+= String.fromCharCode( obj.charCodeAt(i) ); s", |
| "1234", |
| eval("var obj = 1234; obj.__proto__.charCodeAt = String.prototype.charCodeAt; var s = ''; for ( var i = 0; i < 4; i++ ) s+= String.fromCharCode( obj.charCodeAt(i) ); s") ); |
| |
| new TestCase( SECTION, |
| "var obj = 'hello'; obj.__proto__.charCodeAt = String.prototype.charCodeAt; var s = ''; for ( var i = 0; i < 5; i++ ) s+= String.fromCharCode( obj.charCodeAt(i) ); s", |
| "hello", |
| eval("var obj = 'hello'; obj.__proto__.charCodeAt = String.prototype.charCodeAt; var s = ''; for ( var i = 0; i < 5; i++ ) s+= String.fromCharCode( obj.charCodeAt(i) ); s") ); |
| |
| test(); |