SyntaxError: missing ; after for-loop initializer

Question

showing errors like missing ; after for-loop. Thanks for helping.

 function checkAttempt(){
        var studentID = document.getElementById("studentID").value;
        var attempt = 0;

        for (attempt < 3 && studentID == localStorage.studentID){
            gradeTest;
            attempt = attempt + 1;
            localStorage.attempt = attempt;
            }       
        }

for (attempt > 3 && studentID == localStorage.studentID) you mean if? — sabithpocker
– sabithpocker, Commented Oct 6, 2016 at 6:06
You want to use a while, not a for, when you have multiple conditions like that instead of just a counter. — Makaze
– Makaze, Commented Oct 6, 2016 at 6:06

Makaze · Accepted Answer · 2016-10-06 06:08:15Z

1

Replace for with while:

function checkAttempt(){
    var studentID = document.getElementById("studentID").value;
    var attempt = 0;

    while (attempt < 3 && studentID == localStorage.studentID{
        gradeTest;
        attempt = attempt + 1;
        localStorage.attempt = attempt;
    }       
}

answered Oct 6, 2016 at 6:08

Makaze

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2 Comments

Khoo Wing Hang Over a year ago

Thanks for that, but my local storage is not storing attempt, and my gradeTest function is working.

Makaze Over a year ago

That is not the question and the code in your gradeTest function is not in the code you provided. Read the documentation on localStorage and how to call functions.

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