Native js Realizes Date Calculator Function

2021-07-21 07:24:31
OfStack

In this paper, we share the specific implementation code of the date calculator for your reference, the specific contents are as follows

Date Calculator html Code Snippet:


<!doctype html>
<html lang="en">
<head>
 <meta charset="UTF-8">
 <title> Date calculator </title>
 <script type="text/javascript" src="date_calc.js"></script>
</head>
<body>
<br><br>
<b> Calculate the date a few days later: </b>
<br>
 And 
<input size="8" id="SY" value="2016"> Year 
<input size="4" id="SM" value="11"> Month 
<input size="4" id="SD" value="16"> Day 
 (Default is today) 
<br> Difference 
<input size="8" id="decday" value="100"> Days 
 (If you enter a negative number, it will be calculated forward) 
<br> Yes: 
<span id="result1"></span>
<br>
<input type=button value=" Calculation " onclick="cala()">

<br>


<b> Calculate date difference: </b>
<br>

 　　 <input size="8" id="SY2" value="2016"> Year 
<input size="4" id="SM2" value="11"> Month 
<input size="4" id="SD2" value="16"> Day 

<br>
 And <input size="8" id="SY3" value="2017" > Year 
<input size="4" id="SM3" value="1"> Month 
<input size="4" id="SD3" value="1"> Day 
<br> Difference: 
<span id="result2"></span> Days 
<br>
<input type=button value=" Calculation " onclick="calb()">
<br>
</body>

</html>

date_calc. js code snippet:


var hzWeek= new Array(" Day ","1","2","3","4","5","6"," Day ");

// Acquisition week 
function cweekday(wday)
{return hzWeek[wday];}


function cala()
{
y=document.getElementById("SY").value;
m=document.getElementById("SM").value;
d=document.getElementById("SD").value;
ddd=document.getElementById("decday").value;

ttt=new Date(y,m-1,d).getTime()+ddd*24000*3600;

theday=new Date();
theday.setTime(ttt);

document.getElementById("result1").innerHTML=theday.getFullYear()+" Year "+(1+theday.getMonth())+" Month "+theday.getDate()+" Day "+" Week "+cweekday(theday.getDay());


}


function calb()
{

y2=document.getElementById("SY2").value;
m2=document.getElementById("SM2").value;
d2=document.getElementById("SD2").value;


y3=document.getElementById("SY3").value;
m3=document.getElementById("SM3").value;
d3=document.getElementById("SD3").value;


day2=new Date(y2,m2-1,d2);
day3=new Date(y3,m3-1,d3);

document.getElementById("result2").innerHTML=(day3-day2)/86400000;


}