JavaScript error Uncaught SyntaxError Unexpected end of input

Question

I have some JavaScript code that works in FireFox but not in Chrome or IE    In the Chrome JS Console I get the follow error        Uncaught SyntaxError  Unexpected end of input     The JavaScript code I am using is    lt script gt     function          mewlyDiagnosed   hover function             mewlyDiagnosed   animate   height    237px    top    -75px         function             mewlyDiagnosed   animate   height    162px    top    0px           lt  script gt    It says the error is on the last line which is

User · Answer

In my case  it ended up being a simple double quote issue in my bookmarklet  remember only use single quotes on bookmarklets  Just in case this helps someone

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http   jsbeautifier org  is helpful to indent your minified JS code   Also  with Google Chrome you can use  pretty print   See the example screenshot below showing jquery min js from Stack Overflow nicely indented right from my browser

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I got this error when I was trying to write a javascript bookmarklet  I couldn t figure out what was causing it  But eventually I tried URL encoding the bookmarklet  via the following website  http   mrcoles com bookmarklet  and then the error went away  so it must have been a problem with certain characters in the javascript code being interpreted as special URL control characters

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In my case  I was trying to parse an empty JSON   JSON parse stringifiedJSON     In other words  what happened was the following   JSON parse

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This error is mainly caused by empty returned ajax calls  when trying to parse an empty JSON    To solve this test if the returned data is empty     ajax       url  url      type   get       dataType   json       success  function  response             if response data length    0                  EMPTY          else              var obj  jQuery parseJSON response data               console log obj

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In my case  it was caused by a missing  0  in javascript void 0  in an anchor

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Add a second       When properly indented  your code reads    function             mewlyDiagnosed   hover function                 mewlyDiagnosed   animate   height    237px    top    -75px            function                 mewlyDiagnosed   animate   height    162px    top    0px             MISSING    You never closed the outer   function

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I think it could be almost any javascript error typing error in your application  I tried to delete one file content after another and finally found the typing error

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Formatting your code a bit  you have only closed the inner hover function   You have not closed the outer parts  marked below        missing closing   function        missing closing            mewlyDiagnosed   hover          function                     mewlyDiagnosed   animate   height    237px    top    -75px                         function                     mewlyDiagnosed   animate   height    162px    top    0px

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I got this since I had a comment in a file I was adding to my JS  really awkward reason to what was going on - though when clicking on the VM file that s pre-rendered and catches the error  you ll find out what exactly the error was  in my case it was simply uncommenting some code I was using

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I also got this error pointing to the end of the last script block on a page  only to realize the error was actually from clicking on an element with a onclick  pagename  instead of onclick  window location  pagename    It s not always a missing bracket

[javascript] JavaScript error (Uncaught SyntaxError: Unexpected end of input)

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