JavaScript中parseInt函数的使用示例
博客主要介绍了JavaScript中parseInt函数，该函数用于从字符串中提取整数值，可根据指定基数转换。示例展示了不同参数下parseInt的使用，如parseInt(\77\)、parseInt(\77xyz\)等，还提及典型基数有2、8、10、16。
4）parseInt
例 4.4.1
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML>
<head>
<meta http-equiv="content-type" content="text/html; charset=utf-8"/>
</head>
<BODY>
<SCRIPT LANGUAGE="JavaScript">
<!--
/* 马克-to-win：
parseInt() (Function/global)
Parse a string to extract an integer value.
Property/method value type: Number primitive
JavaScript syntax: - parseInt(aNumericString, aRadixValue)
Argument list: aNumericString A string that comprises a meaningful numeric value.
aRadixValue A numeric value indicating the radix for conversion
The parseInt() function produces an integer value dictated by interpreting the string argument according to the specified radix. It can happily cope with hexadecimal values specified with the leading 0x or 0X notation. During conversion parseInt() will remove any leading whitespace characters. You don't need to do that to the string before parsing it.
Note also that parseInt() may only interpret the leading portion of a string. As soon as it encounters an invalid integer numeric character it will assume the scanning is complete. It will then silently ignore any remaining characters in the input argument.
Typical radix values are:
2 - Binary
8 - Octal
10 - Decimal
16 - Hexadecimal
*/
var x = parseInt("77")
var y = parseInt("77xyz")
document.write("x="+x+",y="+y)
var x1 = window.parseInt("77",2)
var y1 = parseInt("77",8)
document.write("x1="+x1+",y1="+y1)
//-->
</SCRIPT>
</BODY>
</HTML>
更多请见：https://blog.youkuaiyun.com/qq_43650923/article/details/102238432
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