Question

How to use boolean variable in JavaScript

Answer 1

var b = true;

if (b)
    document.write("true<br />");
    
 b = false;
 if (b)
    document.write("true<br />");
 else
    document.write("false<br />");
    
 if (!b)
    document.write("true<br />");
           

/*
run:
  
true
false
true
    
*/

 

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