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JavaScript JavaScript Loops, Arrays and Objects Tracking Multiple Items with Arrays Iterating through an Array

Adam Maley
Adam Maley
5,946 Points
Posted by Adam Maley
Adam Maley
5,946 Points

; question about this

var temperatures = [100,90,99,80,70,65,30,10];

for (var i = 0; i < temperatures.length; i += 1) { console.log(temperatures[i]);

}

Why is this correct but this

var temperatures = [100,90,99,80,70,65,30,10];

for (var i = 0; i < temperatures.length; i += 1;) { console.log(temperatures[i]);

}

Is not correct...The ; after i +=1;

1 Answer

Steven Parker
Steven Parker
229,732 Points
Steven Parker
Steven Parker
229,732 Points

Inside the "for" expression, the semicolons are separators between clauses, not delimiters. Adding an extra semicolon implies that there is a 4th clause, which is not proper syntax.