Javascript Null Or Empty String
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Javascript Null Or Empty String
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Web May 24 2018 nbsp 0183 32 const value null if value console log value is either null undefined or empty string lt script gt function getName var myname document getElementById quot Name quot value if myname amp amp myname null alert quot My name is quot myname else alert quot Please Enter Your Name quot Web When the string is not null or undefined and you intend to check for an empty one you can use the length property of the string prototype as follows Javascript empty string let emptyStr quot quot if emptyStr amp amp emptyStr length 0 console log quot String is empty quot
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