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Start your free trialAlina Antemir
10,185 Points${teacher.name} ?
Hi, why did Andrew use ${teacher.name}
and not just teacher.name
?
Thanks
3 Answers
Jennifer Nordell
Treehouse TeacherHi there! This is really just what we call "syntactic sugar" which makes the code more readable. It's called a JavaScript template literal and is covered in this workshop. The console.log function shown in the video is as follows:
console.log(`${teacher.name} - ${teacher.role}`);
Because there's a hyphen in the middle, if we wanted to do this without the templating the same console.log would need to look like this:
console.log(teacher.name + " - " + teacher.role);
Many consider the latter form to be less readable and intuitive.
You can find further documentation on JavaScript template literals here
Hope this helps!
Chris Shaw
26,676 PointsHi Alina Antemir,
In JavaScript as of ES2015 (aka ECMAScript 6), this is known as string interpolation which you will find in other languages with varying syntaxes. The difference with this compared to simply declaring a variable in say console.log
is that we can inject an object directly into a string without needing to concatenate it or use multiple arguments.
You can read more about template literals (as they're officially called) at the below link.
https://developer.mozilla.org/en/docs/Web/JavaScript/Reference/Template_literals
Happy coding!
Alina Antemir
10,185 PointsHi Chris Shaw , Jennifer Nordell ,
Thank you coming back to me so quick. It makes sense now.
Thank you so much, Alina
Michal Janek
Front End Web Development Techdegree Graduate 30,654 PointsSuggesting that you choose one of the answers as Best Answer so this thread is marked as solved.