I want to make if condition between two dates difference-CodePudding

const today = new Date();
var date2 = new Date("10/29/2021");

var Difference_In_Time = date2.getTime() - today.getTime();

var Difference_In_Days = Difference_In_Time / (1000 * 3600 * 24);

document.write(
  "Total number of days between dates  <br>"  
  today  
  "<br> and <br>"  
  date2  
  " is: <br> "  
  Difference_In_Days
);

CodePudding user response：

Try this

const date1 = new Date('9/20/2021');
const date2 = new Date();
const diffTime = Math.abs(date2 - date1);
const diffDays = Math.ceil(diffTime / (1000 * 60 * 60 * 24)); 
console.log(diffTime   " milliseconds");
console.log(diffDays   " days");

CodePudding user response：

there is two problem in your code

you are substracting old data with current which will give you negetive value since current is always bigger because time is going forward always
there is problem in your formaula to divide miliseconds into day i have corrrected this below

const today = new Date();
var date2 = new Date("10/29/2021");

var Difference_In_Time = today.getTime() - date2.getTime();

var Difference_In_Days = ((((Difference_In_Time / 1000) / 1000) / 60) / 24);


console.log(
  "Total number of days between dates  <br>"  
  today  
  "<br> and <br> \n"  
  date2  
  " is: <br> "  
  Difference_In_Days    
)