×
×
Correct!

Use the length property to alert the length of txt.

let txt = "Hello World!"; let x = txt.length; alert(x);

Not Correct

Click here to try again.

Correct!

let txt = "Hello World!";
let x = ;
alert(x);

  
  
  




×

Reset the Score?

This will reset the score of ALL 67 exercises.

Are you sure you want to continue?



×

Congratulations!

You have finished all 67 JS exercises.

Share your score:



Get Certified!

Take our JavaScript Developer Certificate to prove that you have fundamental knowledge of web development using JavaScript.