Use the prompt() method to ask the user "What day is it?" and store the result in the answer variable

1. When you want to change the contents of a variable you should not include the var keyword, var is used to create a new variable, not to change an existing one. This is not something that will cause an issue in this task, but is something you should keep in mind for future reference, as it can lead to unexpected behavior in certain scenarios.

2. Strings, which are used to represent arbitrary text, has to be wrapped in quotes, it cannot stand on its own like it does in your solution.

If you fix those two issues like this:

var answer; // answer is declared
answer = prompt("What day is it?"); // prompt results are assigned to answer

Then you code will work, though it's also worth mentioning that you can combine the two lines above into one line like this:

var answer = prompt("What day is it?"); // answer is declared and assigned on the same line

You`re declaring variable twice. Variables are declaring once with var keyword and then you use it without var keyword. Everytime you declare a variable is similar to create it again.

var answer; answer = prompt("What day is it?");

That won't work unless you get rid of the second word answer and the ;