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JavaScript

jose macedo
jose macedo
6,041 Points
Posted by jose macedo
jose macedo
6,041 Points

why doesnt my program run

my program wont run idk why

https://w.trhou.se/h1fy1vsvc4

4 Answers

David Tonge
PLUS
David Tonge
Courses Plus Student 45,640 Points
David Tonge
David Tonge
Courses Plus Student 45,640 Points

I didn't run it but there's a missing semi-colon after the second alert function. See if that changes anything.

Simon Coates
Simon Coates
28,694 Points
Simon Coates
Simon Coates
28,694 Points

I think you have a problem with { and }. Remember to indent so you can see how { and } match up. You also have:

1) excessive use of var. Within a scope, i think you only need to use it when you first create the variable.

2) rank = rank + 0; is pointless.

3) spelling mistake (you refer to a variable called 'fiftht') will lead to a null problem.

4) if you don't use the guess variable, then it serves no purpose.

David Tonge
PLUS
David Tonge
Courses Plus Student 45,640 Points
David Tonge
David Tonge
Courses Plus Student 45,640 Points

I'm not at my computer, so I can't run your code but paste your code into http://www.jslint.com/ ... there seems to be some missing semi-colons and other errors.

Simon Coates
Simon Coates
28,694 Points
Simon Coates
Simon Coates
28,694 Points

The following might be a little near to what you want. I fixed some stuff and got rid of lines that didn't do anything, or where nothing used the variable in the script:

// intro
var rank = 0;
var name = prompt('what is your name?');
alert('hello ' + name + ' this quiz will test your knowledge on life skills');
alert('only type in your answer as a letter');

// question 1
var first = prompt('when you shake a hand, should you A.shake soflty B.shake firmly with a grip C.shake fast high-up and low-down?');
if(first.toUpperCase() === 'B' ) {
    rank = rank + 1;
    alert("that's correct");
} else if (first.toUpperCase() === 'C' ) {
    alert('you slow!');
} else if (first.toUpperCase() === 'A' ) {
    alert('not right!');
} else {
    var firsttry = prompt('you need to type your answer as a letter!, try again.when you shake a hand, should you A.shake soflty B.shake firmly with a grip C.shake fast high-up and low-down?') 
    if(firsttry.toUpperCase() === 'B' ) {
        rank = rank + 1;
        alert("that's correct");
    } else if (firsttry.toUpperCase() === 'C' ) {
        alert('you slow!');
    } else if (firsttry.toUpperCase() === 'A' ) {
        alert('not right!');
    }
}

//question 2
var second = prompt('how many Gs are in a oz.A 12. B 22. C 28 you have ' + rank + ' answers correct');
if(second.toUpperCase() === 'C' ) {
    rank = rank + 1;
    alert("that's correct");
} else if (second.toUpperCase() === 'B' ) {
    alert('you slow!');
} else if (second.toUpperCase() === 'A' ) {
    alert('not right!');
} else {
    var secondtry = prompt('you need to type your answer as a letter!, try again.how many Gs are in a oz.A 12. B 22. C 28 you have ' + rank + ' answers correct'); 
    if(second.toUpperCase() === 'C' ) {
        rank = rank + 1;
        alert("that's correct");
    } else if (secondtry.toUpperCase() === 'B' ) {
        alert('you slow!');
    } else if (secondtry.toUpperCase() === 'A' ) {
        alert('not right!');
    } 
}

// question 3
var third = prompt('is red A.positive or B.negative on a battery? you have ' + rank + ' answers correct');
if(third.toUpperCase() === 'A' ) {
    rank = rank + 1;
    alert("that's correct");
} else if (third.toUpperCase() === 'B' ) {
    alert('you slow!');
} else {
    var thirdtry = prompt('is red A.positive or B.negative on a battery? you have ' + rank + ' answers correct'); 
    if(thirdtry.toUpperCase() === 'A' ) {
        rank = rank + 1;
        alert("that's correct");
    } else if (thirdtry.toUpperCase() === 'B' ) {
        alert('you slow!');
    }
}

// question 4
var fourth = prompt('what is 12 multiplied by 12? A.122 B.144 C.84 you have ' + rank + ' answers correct');
if(fourth.toUpperCase() === 'B' ) {
    rank = rank + 1;
    alert("that's correct");
} else if (fourth.toUpperCase() === 'C' ) {
    alert('you suck!');
} else if (fourth.toUpperCase() === 'A' ) {
    alert('really?!');
} else {
    var fourthtry = prompt('you need to type your answer as a letter!, try again.how many Gs are in a oz.A 12. B 22. C 28 you have ' + rank + ' answers correct'); 
    if(fourthtry.toUpperCase() === 'B' ) {
        rank = rank + 1;
        alert("that's correct");
    }else if (fourth.toUpperCase() === 'C' ) {
        alert('you suck!');
    } else if (fourth.toUpperCase() === 'A' ) {
        alert('really!');
    } 
}

// question 5
var fifth = prompt('what are channel locks? A.a wrench B. a screwdriver C.pliers you have ' + rank + ' answers correct');
if(fifth.toUpperCase() === 'C' ) {
    rank = rank + 1;
    alert("that's correct");
} else if (fifth.toUpperCase() === 'Bs' ) {
    alert('you suck!');
} else if (fifth.toUpperCase() === 'A' ) {
    alert('really?!');
} else {
    var fifthtry = prompt('what are channel locks? A.a wrench B. a screwdriver C.pliers you have ' + rank + ' answers correct'); 
    if(fifthtry.toUpperCase() === 'C' ) {
        rank = rank + 1;
        alert("that's correct");
    } else if (fifth.toUpperCase() === 'B' ) {
        alert('you suck!');
    } else if (fifth.toUpperCase() === 'A' ) {
        alert('really!');
    } 
}

// quiz done and results
alert('you are done');
if (rank === 5) {
    alert('you are a golden PRO');
} else if (rank === 3 || rank === 4) {
    alert('you are a silver NOVICE');
} else if (rank === 2 || rank == 1) {
    alert('you are a bronze LOSER'); 
}
Simon Coates
Simon Coates
28,694 Points
Simon Coates
Simon Coates
28,694 Points

nb: I wouldn't spend too much time on this. In a real world case, you'd probably write something like this using functions and loops - which eliminate the duplication, and really simplifies debugging.