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
Tony Shangkuan
7,200 PointsIs is possible to concatenating another String to InnerHTML?
Here is the code I wrote:
var message = document.querySelector("body");
message.innerHTML=<h1>1st string content</h1>;
message += "2nd string content";
console.log(message);
Intuitively, I thought this would work, but I ended up getting this [object HTMLBodyElement] Is there something wrong with my code?
1 Answer
Steven Parker
231,248 PointsInstead of appending to message.innerHTML, this code is attempting to add the string directly to message (the body element itself).
Since the message variable doesn't currently contain a string, the system first reassigns it using a string that describes the body element and then concatenates the new string onto that.
Tony Shangkuan
7,200 PointsTony Shangkuan
7,200 PointsOk, so you mean we can not concatenates strings this way even though message.innerHTML may seem to be string but in fact it is not?
Steven Parker
231,248 PointsSteven Parker
231,248 PointsThis code was not appending to message.innerHTML, which is a string. What this code was appending to is message itself, which was originally assigned to the element object.
Tony Shangkuan
7,200 PointsTony Shangkuan
7,200 PointsThanks so much for the clarification ! Now I get it!