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45 lines
1.3 KiB
JavaScript
45 lines
1.3 KiB
JavaScript
// Copyright 2009 the Sputnik authors. All rights reserved.
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// This code is governed by the BSD license found in the LICENSE file.
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/**
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* Empty string, 0, false are all equal (==) to each other, since they all evaluate to 0
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*
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* @path ch08/8.4/S8.4_A8.js
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* @description Compare empty string with undefined, null, 0 and false
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*/
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var str='';
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////////////////////////////////////////////////////////////
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// CHECK#1
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if (str == undefined){
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$ERROR('#1: Empty string and undefined are not equal (!=) to each other');
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}
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//
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/////////////////////////////////////////////////////////////
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////////////////////////////////////////////////////////////
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// CHECK#2
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if (str == null){
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$ERROR('#1: Empty string and Null are not equal (!=) to each other');
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}
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//
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/////////////////////////////////////////////////////////////
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////////////////////////////////////////////////////////////
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// CHECK#3
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if (str != 0){
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$ERROR('#3: Empty string and 0 are equal (==) to each other, since they all evaluate to 0');
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}
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//
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/////////////////////////////////////////////////////////////
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////////////////////////////////////////////////////////////
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// CHECK#4
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if (str != false){
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$ERROR('#4: Empty string and false are equal (==) to each other, since they all evaluate to 0');
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}
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//
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/////////////////////////////////////////////////////////////
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