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The Number Object in Javascript
Number Constructors
var n = new Number( 9 );
typically you would just directly assign the numeric value to your variable:
var n = 9;
Number Methods
toFixed(num)
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converts a floating point number to a string with a specified number of digits
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toString(radix)
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converts a number to a string. radix (optional) is the base used to convert
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toExponential(num)
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converts a number to a string in exponential notation with num representing the number of digits after the decimal point
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