85 lines
1.9 KiB
JavaScript
85 lines
1.9 KiB
JavaScript
/*
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* Copyright (c) 2010, 2013, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/**
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* Checks for binary addition operator.
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*
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* @test
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* @run
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*/
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// number addition
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var x = Math.PI + Math.E;
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print(typeof(x));
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print(x);
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// string concatenation
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x = "hello, " + "world";
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print(typeof(x));
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print(x);
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// string + number
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x = "E is " + Math.E;
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print(typeof(x));
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print(x);
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// number + string
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x = Math.PI + " is PI";
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print(typeof(x));
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print(x);
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// number + undefined
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x = Math.E + undefined;
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print(typeof(x));
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print(x);
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x = undefined + Math.PI;
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print(typeof(x));
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print(x);
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// object with "valueOf" method added to number
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var obj = {
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valueOf: function() { return 44.55; }
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};
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x = 45.66 + obj;
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print(typeof(x));
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print(x);
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x = obj + 3.14;
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print(typeof(x));
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print(x);
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// object with "toString" method added to number
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var obj2 = {
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toString: function() { return "obj2.toString"; }
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};
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x = "hello, " + obj2;
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print(typeof(x));
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print(x);
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x = obj2 + " hello";
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print(typeof(x));
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print(x);
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