Reference Error Variable not declared

Question

I've been scratching my head for hours trying to figure this out. But hours later,still no luck. So I've created a function but when I run the code it says im getting a Reference error and saying that the variable isnt declared

Here is my code:

<html>

<head>
<script src = "fileLoading.js"></script>
<script>

function initialLoad(boolean vraiFaux){
fileLoading("inventory.xml", vraiFaux); //boolean to variable
}

//function pageWrite(){
// code here
//}

</script>

</head>

<button type = "button" onClick = "initialLoad(false)">
<img  src = "panda4.png" alt="Does this work?"></img>
</button>

<body id = "body" onload="initialLoad(true)">

</body>

</html>

Here is my .js file

var xmlDoc;

function fileLoading(dname, vraiFaux)
{

if(vraiFaux){
if (window.XMLHttpRequest)
  {
  xhttp=new XMLHttpRequest();
  }
else
  {
  xhttp=new ActiveXObject("Microsoft.XMLHTTP");
  }
xhttp.open("GET",dname,false);
xhttp.send();
xmlDoc = xhttp.responseXML;
}


var products = xmlDoc.getElementsByTagName("PRODUCT");
var saleItems = new Array();
var p = 0; 

for(var i = 0; i<products.length; i++){
if((products[i].getAttribute("sale")).equals("yes"){
document.getElementById("body").innerHTML+=
('<img src = ' + products[i].getElementsByTagName("PIC")[0].childNodes[0].nodeValue + '</img>' ); // need spacing

saleItems[p] = i;
 p++;
if (p == 3)
break;
}

}
} 




function pageWrite(){
document.getElementById("body").innerHTML=
('<table border = '1'>');
var checker = 0;
for(int externalForLoop = 0; externalForLoop < products.length){


if(checker => products.length)
break;
document.getElementById("body").innerHTML += 
('<tr>');
for (int i = 0; i =< 2; i++){
document.getElementById("body").innerHTML += 
('<td><b><img src = ' + products[checker].getElementsByTagName("PIC")[0].childNodes[0].nodeValue + '</img></b></br></td>' + &nbsp);

} 
document.getElementById("body").innerHTML += 
('</tr></br>');
//next for loop goes after here
for (int n = 0; n =< 2; n++){
document.getElementById("body").innerHTML += 
products[checker].getElementsByTagName("NAME")[0].childNodes[0].nodeValue + '</b></br></td>' + &nbsp);
} 
document.getElementById("body").innerHTML += 
('</tr></br>);
//next for loop goes after here
for (int c = 0; c =< 2; c++){
document.getElementById("body").innerHTML += 
products[checker].getElementsByTagName("CATAGORY")[0].childNodes[0].nodeValue + '</b></br></td>' + &nbsp);
} 
document.getElementById("body").innerHTML += 
('</tr></br>);
//next for loop goes after here
for (int o = 0; o =< 2; o++){
document.getElementById("body").innerHTML += 
products[checker].getElementsByTagName("COMPANY")[0].childNodes[0].nodeValue + '</b></br></td>' + &nbsp);
} 
document.getElementById("body").innerHTML += 
('</tr></br>);
//next for loop goes after here
for (int d = 0; d =< 2; d++){
document.getElementById("body").innerHTML += 
products[checker].getElementsByTagName("DESCRIPTION")[0].childNodes[0].nodeValue + '</b></br></td>' + &nbsp);
} 
document.getElementById("body").innerHTML += 
('</tr></br>);
//next for loop goes after here
for (int p = 0; p =< 2; p++){
document.getElementById("body").innerHTML += 
products[checker].getElementsByTagName("PRICE")[0].childNodes[0].nodeValue + '</img></b></br></td>' + &nbsp);
} 
document.getElementById("body").innerHTML += 
('</tr></br>);
//next for loop goes after here
for (int s = 0; s =< 2; s++){
document.getElementById("body").innerHTML += 
products[checker].getElementsByTagName("SALE")[0].childNodes[0].nodeValue + '</b></br></td>' + &nbsp);
} 
document.getElementById("body").innerHTML += 
('</tr></br>);
//next for loop goes after here
checker++;
if (checker == (products.length - 1)){
document.getElementById("body").innerHTML += 
('</table>')
}

var products=xmlDoc.getElementsByTagName("PRODUCT");

}

Answer 1

I'd guess it's the boolean . Try removing it.

In Javascript, you don't need to specify a variable's type. So, it probably reads boolean as a variable name, but sees that there is no variable named boolean , so throws a reference error.

Additionally, fileLoading.js contains multiple syntax errors. I'd recommend looking at the errors it should be producing for you…

In particular:

Line 26 is missing a right paren
Bad quotes on line 44
Unexpected int on line 46 (don't need those!)
Line 46 needs a 3rd clause in the for-loop
Used => instead of presumably >= on line 49
Unexpected int on line 53
Used =< instead of presumably <= on line 53
  is an HTML entity, not a Javascript variable; move into the string on line 55
And even more; I'm going to bed now, but you should be able to find the rest with your console's help.

This is one of the reasons that I recommend building software in small pieces and testing between each piece: debugging a huge chunk of code like this is seriously painful, and many of these errors wouldn't even exist if you'd caught their first instances early.

Reference Error Variable not declared

Question

1 answers

solution1
2 2013-06-02 06:13:24

Reference Error Variable not declared

Question

1 answers

solution1 2 2013-06-02 06:13:24

solution1
2 2013-06-02 06:13:24