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Comparing a string with the empty string (Java)
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Compare two objects in Java with possible null values
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String comparison in \ifthenelse
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Javascript string/integer comparisons
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Using OR comparisons with IF statements
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How to check whether operator== exists?
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Compare one String with multiple values in one expression
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PHP: a short cut for isset and !empty?
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Comparing two strings in C?
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String.equals versus ==
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How can I check for an empty/undefined/null string in JavaScript?
32886
What is the difference between != and =! in Java?
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Checking Textbox Text for Null
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How to compare strings in Bash
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C# Empty Statement
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Why does my string comparison fail?
27495
Why is True returned when checking if an empty string is in another?