How to convert octal to decimal in JavaScript-Front-end Q&A-php.cn

How to convert octal to decimal in JavaScript

WBOY

Release： 2022-03-10 10:40:23

Original

1786 people have browsed it

In JavaScript, you can use the parseInt() function to convert an octal number to a decimal number. This function is used to parse strings. The returned result is the parsed integer. When the parameter is set to 8 , you can convert octal to decimal, the syntax is "parseInt(string,8)".

How to convert octal to decimal in JavaScript

The operating environment of this tutorial: Windows 10 system, JavaScript version 1.8.5, Dell G3 computer.

How to convert octal to decimal in JavaScript

The parseInt() function can parse a string and return an integer.

When the value of parameter radix is 0, or the parameter is not set, parseInt() will determine the base of the number based on string.

When the parameter radix is omitted, JavaScript defaults to the radix of numbers as follows:

If string starts with "0x", parseInt() will parse the rest of string into hexadecimal integers.

If string starts with 0, then ECMAScript v3 allows an implementation of parseInt() to parse the following characters into octal or hexadecimal numbers.

If string starts with a number from 1 to 9, parseInt() will parse it into a decimal integer.

parseInt(string, radix)

Copy after login

string Required. The string to be parsed.

radix Optional. Represents the base of the number to be parsed. The value is between 2 ~ 36.

The example is as follows:

<html>
<head>
<meta charset="utf-8">
<title>123</title>
</head>
<body>
<script>
document.write(parseInt("12",8)) ;
</script>
</body>
</html>

Copy after login

Output result:

How to convert octal to decimal in JavaScript

##Related recommendations:

javascript learning tutorial

The above is the detailed content of How to convert octal to decimal in JavaScript. For more information, please follow other related articles on the PHP Chinese website!