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JavaScript JavaScript Foundations Strings Concatenation

Nikki Turrisi
Nikki Turrisi
15,095 Points
Posted by Nikki Turrisi
Nikki Turrisi
15,095 Points

I don't understand the point of concatenating the multi-line? Isn't it a waste of code and characters?

Is it because you can organize the actual code better within js? It seems redundant to me.

3 Answers

Marcus Parsons
Marcus Parsons
15,719 Points

Concatenation of multiple lines is very handy if you have strings that stretch far beyond your screen size going into a single variable, and you don't want to have to horizontally scroll for 3 minutes to see what you wrote because I certainly do not like horizontally scrolling to see anything! :D

Mathijs Bakker
Mathijs Bakker
2,914 Points

An example:

// Bad Practice
var errorMessage = 'This is a super long error that was thrown because of Batman. When you stop to think about how Batman had anything to do with this, you would get nowhere fast.';

// Good Practice
var errorMessage = 'This is a super long error that was thrown because ' +
  'of Batman. When you stop to think about how Batman had anything to do ' +
  'with this, you would get nowhere fast.';
Marcus Parsons
Marcus Parsons
15,719 Points

Absolutely, Mathjis!

Jonathan Grieve
MOD
Jonathan Grieve
Treehouse Moderator 91,252 Points
Jonathan Grieve
Jonathan Grieve
Treehouse Moderator 91,252 Points

You should feel free to format the code as you see fit. I can see why you might want to code multiline if you had something like this

var language = " javascript";
var mood = " it's great";

"I love" 

+" coding in" 
+ language
+ "because "
+ mood

But if you were joining together strings that were much larger, it might be easier to read if you put them one one line. :-)

Marcus Parsons
Marcus Parsons
15,719 Points

Totally agree!

Kieran Kane
Kieran Kane
10,973 Points
Kieran Kane
Kieran Kane
10,973 Points

My understanding is that it doesn't have any benefit in the example given, but it shows you how to use it for examples like Marcus and Jonathon provided.