Fixing An “Unterminated String Literal” Error In An AJAX JavaScript HttpRequest
So you’ve written your first AJAX program, tested it, and it seems to work. Except sometimes, when your “helper script” is supposed to return some data from your database, you get this error:
Unterminated string literal
What gives? Basically, you’ve run into a quote mark in your data — and because it doesn’t know any better, JavaScript thinks you mean for it to end a string.
Of course, that’s not what you meant. As a result, you have more text appearing after what JavaScript considers the end of a string.
And when JavaScript sees that extra text, it wants it to start and end with quotes. Since, as far as JavaScript is concerned, that extra text isn’t fully enclosed in quotes, it’s unterminated — thus, an “unterminated string literal.”
Let’s look at this more closely, and see how simple it is to clear up.
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