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JavaScript JavaScript Basics Working with Strings Combine and Manipulate Strings

Posted by malcolm mowlam
malcolm mowlam
3,856 Points

task 2 java basics

still getting problems

app.js 
 firstName=("Malcolm");
 lastName= ("Mowlam");
 role = 'developer';
 firstName=("Carlos");
 lastName=("Salgado"); role=("developer");
 msg = "firstname" ' + ' "lastname" ' + ' "role":"
console.log = msg
malcolm mowlam
malcolm mowlam
3,856 Points

I'm getting fed up with keep getting property 1 is null and every time i go back i have to start from the beginning but thank you for your help it was really appreciated

Tomasz Grodzki
Tomasz Grodzki
8,130 Points
Tomasz Grodzki
Tomasz Grodzki
8,130 Points

You gettin this error because you have obvious mistakes.

Mistakes that make error:

  1. You didn't declared variables. You need to use a statement (like let or var) to declare variable
  2. You concatenate strings in wrong way. You have needless quotes. When you should quotes everything inside quotes is treated just like string, with any additional meaning. If you want to use operators like + you shouldn't use quote. Well... You can use quote but then + will be treated just like sign, not like an operator.

So in this case it should looks like:

const msg = firstName + ' ' + lastName + ': ' + role;

Mistakes that doesn't make errors in this challenge but are mistakes:

  1. You don't need to parenthesis to assign a value.
  2. Why are you tryin to assign values to variables twice?
  3. Why you wrote 'console.log = msg'?

2 Answers

Tomasz Grodzki
Tomasz Grodzki
8,130 Points
Tomasz Grodzki
Tomasz Grodzki
8,130 Points

Firstly, you don't have to start new topic to every new problem with the same task. You can make responses in the same topic.

Secondly, read carefully my post from your previous topic, please. Why u wrote + in quotes? I wrote you in previous response, that if you write any sign in quotes it's treated just like sign, without any additional meaning or reference.

And thirdly, it's not Java it's JavaScript.

Take care and happy coding!

malcolm mowlam
malcolm mowlam
3,856 Points
malcolm mowlam
malcolm mowlam
3,856 Points

Get cannot read property 1 of null