regex - Javascript matching "\" backslash in a string -

i using below code match words in comma separated string

<script> var str="testdata, w3\standard,";  var patt=/\bw3\\standard/g; document.write(str.match(patt) ); </script> 

but not give me result though escape string in regular expression. on

the string doesn't have \ character in since starts escape sequence when use in string literals.

you have escape character in original string literal:

var str="don't visit awful w3\\schools,";  var patt1=/\bw3\\schools/g; document.write(str.match(patt1));