Nnmber type in ecmascript

The nnmber type in ecmascript is special. This type can be a 32-bit integer or a 64-bit floating point number. Any number directly entered is treated as a number literal. For example:

 

VaR inum = 44;

VaR inum = 070;

VaR inum = 0xab;

VaR inum = 0x1f;

 

An integer can also be expressed as octal or hexadecimal.

 

VaR fnum = 55;

 

VaR fnum = 3.125e7

 

A very large or very small number can also be expressed by scientific notation.

 

A special value indicates infinity, that is, infinity.

 

Number. The value of positive_infinity is infinity;

 

Number. The value of negative_infinity is-infinity;

 

There is also a special value Nan, which indicates a non-a number. Nan is a strange special value, and it is not equal to itself.