JavaScript Syntax Error

Question

out += (out ? rogueArray[14] : rogueArray[13]) + arrayItem + ((vanWilder[arrayItem] !== null) ? = + encodeURIComponent(vanWilder[arrayItem]) : rogueArray[13]);

There is supposedly a syntax error here on the line up until [arrayItem in Dreamweaver. Any help?

Here is image of it in DreamWeaver:

https://i.sstatic.net/ITqV3.jpg

Answer 1

Breaking down what you've written...

out += (
 out ?
 rogueArray[14] :
 rogueArray[13]
 ) +
 arrayItem +
 (
 (vanWilder[arrayItem] !== null) ?
 //Oh no! What's this assignment doing here?
 = + encodeURIComponent(vanWilder[arrayItem]) : rogueArray[13]);

As well, it would be easier to debug your code if you did something like the following:

if (out) {
 out += rogueArray[14]
} else {
 out += rogueArray[13]
}
out += arrayItem
if (vanWilder[arrayItem] !== null) {
 out += encodeURIComponent(vanWilder[arrayItem])
} else {
 out += rogueArray[13]
}

• codelahoma: +1 @NT3RP for getting those ternary operators out of there. Code should be written to be read. Save the ternaries for minification, obfuscation, and pluralizing.

Answer 2

I'm not sure what ? = + means, but really, that's too much going on in one line if you're just writing this. Break it apart into separate lines, use temporary variables, and then refactor it down to a compact one liner with nested tertiary operators if you really need to after it works, doing this one step at a time.

Answer 3

You have an assignment operator floating around in the middle of that expression. Remove it and it should be syntactically correct.