The following code does not seem to work, I have tried all
combinations of \\, \, \\\ etc. Unfortunately I can not change str .

<script type="text/javascript">

var str = 'Hello \ World';
var pattern = /\\/;
result = str.split( pattern );

alert(result[0]);

</script>

oprah.chopra@gmail.com said:
>
>The following code does not seem to work, I have tried all
>combinations of \\, \, \\\ etc. Unfortunately I can not change str .
>
><script type="text/javascript">
>
>var str = 'Hello \ World';
>var pattern = /\\/;
>result = str.split( pattern );
>
>alert(result[0]);
>
></script>

alert the value of str.
You'll be surprised.


-- 
                         

oprah.chopra@gmail.com a �crit :
> The following code does not seem to work, I have tried all
> combinations of \\, \, \\\ etc. Unfortunately I can not change str .
> 
> <script type="text/javascript">
> 
> var str = 'Hello \ World';
> var pattern = /\\/;

the right patern would have to be :

      var pattern = /\ /;

because :

      var str = 'Hello \ World';
                       ^^

> result = str.split( pattern );

or :

    result = str.split( '\ ' );


> alert(result[0]);
> 
> </script>

oprah.chopra@gmail.com wrote:
> The following code does not seem to work, I have tried all
> combinations of \\, \, \\\ etc. Unfortunately I can not change str .

Yes, you can, and you will have to.

> var str = 'Hello \ World';

Try window.alert(str), console.log(str) or print(str) after that, and you'll
see that it equals

  var str = 'Hello World';

because "\ " is an unspecified string literal (like "\/" in the
common escape sequence "<\/" for "</" is).  You are looking for

  var str = 'Hello \\ World';

If this code is generated by ASP JScript, you can use

  var str = '<%= foo.replace(/["'\\]/g, "\\$&") %>';

In PHP:

  var str = '<?php echo addslashes($foo); ?>';

or with asp_tags=1:

  var str = '<%= addslashes($foo); %>';

Perl:

  $foo = 'Hello \\\'" World';
  $foo =~ s/["'\\]/\\$&/g;
  print <<EOD;
    var str = '$foo';
EOD

Python (indent accordingly):

import re

foo = r'Hello \'" World'
print """\
    var str = '%s';\
""" % re.sub(r'(["\'\\])', r'\\\1', foo)

Bourne Shell-compatible shell scripting with GNU textutils (provide sed(1)):

  foo="Hello \\'\" World"
  foo=$(echo "$foo" | sed 's/[\\"'\'']/\\\0/g')
  echo "\
    var str = '$foo'\
"

> var pattern = /\\/;

Unnecessary, you can pass the RegExp literal as-is.

> result = str.split( pattern );

There is no backslash in the parsed string, so no match that could be used
for splitting.

> alert(result[0]);

  window.alert(result[0]);


PointedEars
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