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mickle00/bug_or_feature.apex

Created October 10, 2014 20:03
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bug_or_feature.apex
string null1 = null;
string null2 = null;
string empty1 = '';
string empty2 = '';
system.debug(null1 + null2); //nullnull
system.debug(String.isNotEmpty(null1 + null2)); //true
system.debug(null1 + empty1); //null
system.debug(String.isNotEmpty(null1 + empty1)); //true
system.debug(empty1 + null1); //null
system.debug(String.isNotEmpty(empty1 + null1)); //true
system.debug(empty1 + empty2); // ''
system.debug(String.isNotEmpty(empty1 + empty2)); //false
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