Не понимаю вопроса

Tell us what’s happening:
Describe your issue in detail here.
я понимаю что должно быть по итогу a=b;
но выдает ошибку в чем дело?

Your code so far


// Setup
var a;
a = 7;
var b;

// Only change code below this line

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Challenge: Assigning the Value of One Variable to Another

Link to the challenge:

It doesn’t look like you have tried anything yet. You need to take the value stored in a and put it in b.