Remove last 3 characters of string or number in javascript

Question

I\'m trying to remove last 3 zeroes 1437203995000

How do i this in javascript. Im generating the numbers from new date() function

Answer 1

Remove last 3 characters of a string

var str = '1437203995000';
str = str.substring(0, str.length-3);
// '1437203995'

Remove last 3 digits of a number

var a = 1437203995000;
a = (a-(a%1000))/1000;
// a = 1437203995