js如何截取小数点前的数字？如

[chinacnc]

59897.232565684

想要59897

[for_cyan]

var ab = 59897.232565684;
var ab_str = ab.toString();
var ab_num = parseInt(ab_str.substring(0,ab_str.indexOf('.')));
alert(ab_num);

[Tristan_Liu]

var i = 59897.232565684.indexOf(".");
59897.232565684.substring(0,i);

[Tongates]

double f=59897.232565684;
String fs = String.valueOf(f);
fs=fs.replaceAll("([^\\.]+)\\.(.*)","$1");

[shan1119]

alert(Math.round(59897.232565684));

[china2001ok]

alert(Math.round(59897.232565684));
正解！！！！！

[xiaosaq]

<script language="javascript">
function tt(){
var ab = 59897.232565684;
var ab_str = ab.toString();
var ab_num = parseInt(ab_str.substring(0,ab_str.indexOf('.')));
}
</script>