Javascript numbers reference.
Javascript build-in Number object reference.
Create numbers:
Prototype Methods:
Syntax: | toExponential(fractionDigits) |
The method will return the number in an exponential form with a digit before the comma and "fractionDigits" digits after the comma. The fractional part of the number is rounded upward. |
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Return value: | A string. |
fractionDigits: | The number of digits (0 - 20) that you want after the decimal point. If the argument is omitted, then a number of decimal places as necessary will be used. |
An example of using the toExponential() :
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Prototype Properties:
Syntax: | Number.prototype.constructor |
This property of the Number.prototype holds the reference back to the Number object.
You can find all the Number constants through this constructor. (Number.prototype.constructor.MAX_VALUE is the same as Number.MAX_VALUE) |
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Important note: | This is the same as the constructor property of an instantiated object |
Constructor (Number) Properties:
Syntax: | Number.constructor |
The constructor property is a reference to the function that will be invoked to create a Number object. |
Constructor (Number) Constants:
Number.MAX_VALUE: | Largest representable number. (1.7976931348623157e+308) |
Number.MIN_VALUE: | Smallest (closest to zero) representable number. (5e-324) |
Number.NaN: | Special Not-a-Number value. (NaN) |
Number.POSITIVE_INFINITY: | Special value to represent infinity. (Infinity) |
Number.NEGATIVE_INFINITY: | Special value to represent negative infinity. (-Infinity) |
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