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STATEMENT:  with
with
 
The with statement establishes a default object for a set of statements. If there are any unqualified names in a set of statements, JavaScript first checks the default object to see if they exist there as properties of that object; otherwise a local or global variable is used.
 
In the following example the default object is 'beer' and the code displays one of two messages depending on the value of the property 'percent_proof':
 
Code:
with(beer)
{
   if(percent_proof < 5)
      document.write("Call this a strong beer?!");
   else
      document.write("This is what I call a beer!");
}

 


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