Example Analysis of Number Type in JavaScript

This article will explain in detail the example analysis of the Number type in JavaScript. The editor thinks it is very practical, so I share it for you as a reference. I hope you can get something after reading this article.

Number

Number numeric type: contains integers and decimals

Can be expressed as: decimal, octal, hexadecimal

Such as:

Var num = 10; / / Decimal var num1 = 012; / / Octal var num2 = ox123; / / hexadecimal

Range of values:

Console.log (Number.MAX_VALUE); / / maximum value is 5e-324console.log (Number.MIN_VALUE); / / minimum value is 1.7976931348623157e+308 infinity: Infinity infinitesimal:-Infinity

Numeric judgment cannot use decimals to verify decimals and do not use NaN to verify whether it is NaN (NaN----not a number), but can use isNaN- is not a number to verify whether the result is NaN.

Such as:

Var num; / / declares a variable with no value console.log (isNaN (num)); / / isn't true a number? The result is that true's article on "sample Analysis of Number types in JavaScript" ends here. I hope the above content can be of some help to you, so that you can learn more knowledge. if you think the article is good, please share it for more people to see.