今天刚刚做完师傅给的第一个任务,写js脚本,计算各种公式。在这两天里面,学到了一些东西,不懂就要问,不会就要去查,不要等着知识会跑到你自己嘴里。
做的这个小任务学到了:
1.运用方法的时候注意大小写;js区分大小写。
2.var num1=3.2225;alert((num1).toFixed(2));会得到结果是两位的小数,toFixed()函数很强大,可以四舍五入,可以补齐小数。
3.parseInt()函数可以把对象值变为数字。
4.日期天数计算:var arbitDeliveryDate = document.getElementById("arbitDeliveryDate").value;
var reportDate = document.getElementById("reportDate").value;
var arbitDeliveryDateMonth = arbitDeliveryDate.substring(5,arbitDeliveryDate.lastIndexOf ('-'));
var arbitDeliveryDateDay = arbitDeliveryDate.substring(arbitDeliveryDate.length,arbitDeliveryDate.lastIndexOf ('-')+1);
var arbitDeliveryDateYear = arbitDeliveryDate.substring(0,arbitDeliveryDate.indexOf ('-'));
var reportDateMonth = reportDate.substring(5,reportDate.lastIndexOf ('-'));
var reportDateDay = reportDate.substring(reportDate.length,reportDate.lastIndexOf ('-')+1);
var reportDateYear = reportDate.substring(0,reportDate.indexOf ('-'));
var cha=((Date.parse(arbitDeliveryDateMonth+'/'+arbitDeliveryDateDay+'/'+arbitDeliveryDateYear)- Date.parse(reportDateMonth+'/'+reportDateDay+'/'+reportDateYear))/86400000);