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JavaScript

Posted by msdsmd sm,dfsadf
msdsmd sm,dfsadf
1,124 Points

Why I am getting four instead of three?

<script>

var i = 0;
for(; i < 4;i++){

}
alert(i)



</script>

1 Answer

Adam N
Adam N
70,280 Points

During the last iteration of the loop "i" is 4 and "i" lives in the global scope. To prevent behavior this you can use let in the for loop like this:

for (let i = 0; i < 4; i++) {

}

Although, with the above code "i" won't be defined outside of the loop.