FAQ: Introduction to JavaScript - String Concatenation


This community-built FAQ covers the “String Concatenation” exercise from the lesson "Introduction to JavaScript ".

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This exercise can be found in the following Codecademy content:

Web Development

Introduction To JavaScript

FAQs on the exercise String Concatenation

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The instructions for this thread is as follows.

  1. Inside a console.log() statement, concatenate the two strings ‘Hello’ and ‘World’

I did this with the following code
console.log('Hello' + 'World');

Apparently this was wrong and I tried checking what the solution was, and apparently it’s

console.log('Hello'+ ' ' + 'World');

To be honest, I don’t think we should be wrong there.


Agreed! But even when i use: console.log(‘Hello’+ ’ ’ + ‘World’); it still does not see it as being correct.

Ah - what it requires is both lines - one without the space, then one with the space.


The solution that I found worked the best for me was console.log('Hello ’ + 'World); because the space is included in the first string. Solved the problem for me.


I have worked past this part into more of the JS fundamentals, but I am still unsure as to why it would ever be necessary to use string concatenation. Why would one need to append one string to another instead of simply writing it as one string?