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JavaScript JavaScript Basics (Retired) Working With Numbers Doing Math

When we are using document.write is there a way to get the answers with commas?

So in this lesson we are creating javascript equations that we can use on our webpage. I'm just wondering how we incorporate commas into larger numbers so they are easier to read. So when I use document.write to express how many seconds old I am I get 914544000 and it would be nice to know how I get that to show 914,544,000.

2 Answers

Hi Ginger,

From MDN, call toLocaleString() on a number object.

var number = 3500;

console.log(number.toLocaleString()); // Displays "3,500" if in U.S. English locale

Thank you!

In this example you would write your code down like this.

var secondsPerMin = 60; var minsPerHour = 60; var hoursPerDay = 24; var daysPerWeek = 7; var weeksPerYear = 52; var secondsPerDay =secondsPerMin * minsPerHour * hoursPerDay; document.write("There are " + secondsPerDay.toLocaleString() + " seconds in a day");