Tell us what’s happening:
I have just known that if you override a variable with let keyword, it throws.
But why it is happening in case 1 only, why not happening in case 2 too.
Your code so far
//case 1 let x = 4; x= 6; //case 2 let y = 5; let y = 7;
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Challenge: Explore Differences Between the var and let Keywords
Link to the challenge: