differentiate between a boolean and a string return value using JavaScript with predefined value - Javascript Data Type

Javascript examples for Data Type:boolean

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Description

differentiate between a boolean and a string return value using JavaScript with predefined value

Demo Code

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<html>
   <head> 
      <meta name="viewport" content="width=device-width, initial-scale=1"> 
      <script type="text/javascript">
    window.onload=( function() {//from ww  w  .  ja va 2  s .  co m
var falsableStrings = {
    "fff": true,
    "false": true
}
function isFalseString(str) {
    return ! falsableStrings[str.toLowerCase()]
}
console.log([isFalseString("fff"), isFalseString("false"), isFalseString("true")])
    });

      </script> 
   </head> 
   <body>  
   </body>
</html>

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