Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

JavaScript JavaScript and the DOM (Retiring) Making Changes to the DOM Getting and Setting Text with textContent and innerHTML

jons phyos
PLUS
jons phyos
Courses Plus Student 35 Points
Posted by jons phyos
jons phyos
Courses Plus Student 35 Points

what does () => on this javascript?

i don't know why he use this () => on the code, any know know what this does?

1 Answer

Steven Parker
Steven Parker
229,657 Points
Steven Parker
Steven Parker
229,657 Points

That's part of "arrow function" syntax.
It indicates the beginning of the definition of an anonymous function that takes no parameters.

For more details, see the MDN page on Arrow Functions.