I second this. It wasn't very clear

should be fixed

Extra or less spaces aren't accepted anywhere in the string. I'm not the kata's author, let's wait for him to look at your suggestion. I've added some more info at the end, that should be enough.

Sample test:

assert.strictEqual(multiTable(5), '1 * 5 = 5\n2 * 5 = 10\n3 * 5 = 15\n4 * 5 = 20\n5 * 5 = 25\n6 * 5 = 30\n7 * 5 = 35\n8 * 5 = 40\n9 * 5 = 45\n10 * 5 = 50');

Look at the expected value. There is no space after the last number of each line. The assertion compares two strings, they need to be exactly equal.

That's not an issue, look at the sample tests.

Same here!! I was surprised when I saw this super simple line of code! I'm sure after some practice we will be able to think these solutions as well!! ✌🏻