| /* -*- 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: 11.4.1.js |
| ECMA Section: 11.4.1 the Delete Operator |
| Description: returns true if the property could be deleted |
| returns false if it could not be deleted |
| Author: christine@netscape.com |
| Date: 7 july 1997 |
| |
| */ |
| |
| |
| var SECTION = "11.4.1"; |
| var VERSION = "ECMA_1"; |
| startTest(); |
| var TITLE = "The delete operator"; |
| |
| writeHeaderToLog( SECTION + " "+ TITLE); |
| |
| // new TestCase( SECTION, "x=[9,8,7];delete(x[2]);x.length", 2, eval("x=[9,8,7];delete(x[2]);x.length") ); |
| // new TestCase( SECTION, "x=[9,8,7];delete(x[2]);x.toString()", "9,8", eval("x=[9,8,7];delete(x[2]);x.toString()") ); |
| new TestCase( SECTION, "x=new Date();delete x;typeof(x)", "undefined", eval("x=new Date();delete x;typeof(x)") ); |
| |
| // array[item++] = new TestCase( SECTION, "delete(x=new Date())", true, delete(x=new Date()) ); |
| // array[item++] = new TestCase( SECTION, "delete('string primitive')", true, delete("string primitive") ); |
| // array[item++] = new TestCase( SECTION, "delete(new String( 'string object' ) )", true, delete(new String("string object")) ); |
| // array[item++] = new TestCase( SECTION, "delete(new Number(12345) )", true, delete(new Number(12345)) ); |
| new TestCase( SECTION, "delete(Math.PI)", false, delete(Math.PI) ); |
| // array[item++] = new TestCase( SECTION, "delete(null)", true, delete(null) ); |
| // array[item++] = new TestCase( SECTION, "delete(void(0))", true, delete(void(0)) ); |
| |
| // variables declared with the var statement are not deletable. |
| |
| var abc; |
| new TestCase( SECTION, "var abc; delete(abc)", false, delete abc ); |
| |
| new TestCase( SECTION, |
| "var OB = new MyObject(); for ( p in OB ) { delete p }", |
| true, |
| eval("var OB = new MyObject(); for ( p in OB ) { delete p }") ); |
| |
| test(); |
| |
| function MyObject() { |
| this.prop1 = true; |
| this.prop2 = false; |
| this.prop3 = null; |
| this.prop4 = void 0; |
| this.prop5 = "hi"; |
| this.prop6 = 42; |
| this.prop7 = new Date(); |
| this.prop8 = Math.PI; |
| } |