JavaScript Algorithm: Convert Age to Days

(Beginner) No more mental math every time you need to translate ages

Photo by Anna Vander Stel on Unsplash

Dealing with age values in code often requires translating between units — years, months, days, etc. Rather than googling conversions on the fly, let’s set up our own reusable function to handle the math once and for all!

In just a few steps, we’ll take a number representing age in years and return the total days that equals. Let’s begin.

Defining Our Year-to-Day Function

First, we set up the function signature with the years parameter:

function yearsToDays(years) {

}

By adding years here, we indicate any value passed during function calls should go into that variable.

Calculating Total Days

Inside the function body, we simply multiply the years by 365:

function yearsToDays(years) {
  var days = years * 365;

}

Easy math! Since there are 365 days per year, this formula does the conversion perfectly.

Returning the Result

Finally, we return the total days back out of the function:

function yearsToDays(years) {…