javascript - 如何以十进制显示给定年份的确切月份

Question

var schemeduration = '1.5';// 1 year and 5 months
var schemeduration= (parseFloat(schemeduration) * 12).toFixed(0) ;
alert(schemeduration);

1.1 = 13 months
1.2 = 14 months
1.3 = 15 months
1.4 = 16 months
1.5 = 17 months
1.6 = 18 months
1.7 = 19 months
1.8 = 20 months
1.9 = 21 months
1.10 = 22 months
1.11 = 23 months
1.12 = 24 months

如何以十进制显示给定年份的确切月份。对于上面给出的，它应该显示 17，但我得到的值为 18。一年有 12 个月，我需要以月份计算的输出

JSFIDDLE

Answer 1

这应该有效:

var schemeduration = '1.5';

if(schemeduration.indexOf('.') === -1) schemeduration += '.0';

var years = Math.floor(parseFloat(schemeduration));
var months = parseInt(schemeduration.split('.')[1], 10);

schemeduration = years * 12 + months;

alert(schemeduration);

演示:http://jsfiddle.net/NsBxX/1/