变量内的引号

Question

i'm trying to do very simple thing:
store quotation mark ( " or ' ) inside variable on javascript event
(for example: onerror (img element))
my code:

<img onerror="var m ='"';  document.write(m);">

or:

<img onerror='var m = "'";  document.write(m);'>

I do not need to explain why this code does not work(the attribute)...
(onerror= " var m =' " '; document.write(m); " >)

note : i can't use charAt or fromcharcode i'm trying to do it without any function ( alternatives ).

Answer 1

只需使用反斜杠\\"进行转义，即... onerror="var m='\\"'; ...

Answer 2

Declare a function as a handler of your event and use it that way.

<script>
   function onImgError() {
      var m ='"';
      document.write(m);"
   }
</script>

<img onerror="onImgError()">