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Function:  number
number(object)
 
The top-level function, number, converts the object argument to a number representing the object's value. If the value cannot be represented by a legitimate number, the "Not-a-Number" value, NaN is returned.
 
The object argument must be a JavaScript object. If no argument is provided, number returns zero, 0.
 
In this example, a new Boolean object is created with a string argument of "true". The number function returns, 1, which is the number equivalence of the value of the object.
 
Code:
boo = new Boolean("true")
document.write(Number(boo))
 
Output:
1

 


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