How to convert date to milliseconds by javascript?

var dateTokens = "2018-03-13".split("-");
//creating date object from specified year, month, and day
var date1 = new Date(dateTokens[0], dateTokens[1] - 1, dateTokens[2]);
//creating date object from specified date string
var date2 = new Date("2018-03-13");

console.log("Date1 in milliseconds: ", date1.getTime());
console.log("Date2 in milliseconds: ", date1.getTime());

console.log("Date1: ", date1.toString());
console.log("Date2: ", date2.toString());

One way is to use year, month and day as parameters on new Date

new Date(year, month [, day [, hours [, minutes [, seconds [, milliseconds]]]]]);

You can prepare your date string by using a function.

Note: Month is 0-11, that is why m-1

Here is a snippet:

function prepareDate(d) {
  [d, m, y] = d.split("-"); //Split the string
  return [y, m - 1, d]; //Return as an array with y,m,d sequence
}

let str = "25-12-2017";
let d = new Date(...prepareDate(str));

console.log(d.getTime());

Doc: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date

Tags:

Javascript

Date

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