javascript中涉及反斜杠的字符串拆分

Question

How can we split the following tag to extract the substring "PDSGJ:IO.HJ" .

var input = "\\\\initvalues\\PDSGJ:IO.HJ~some" .

I tried the following:

var input = "\\initvalues\PDSGJ:IO.HJ~some";
var b = input.split('\\');
alert(b[1]);

Note: The format remains the same , \\\\,\\, ~ format is same and mandatory for all strings .

But the problem is , I get the output as: initvaluesPDSGJ:IO.HJ~some . I need '\\' also because I need to further split and get the value.

Any other method is there to get the value?

Answer 1

You can use regular expressions :

 var input = '\\\\initvalues\\PDSGJ:IO.HJ~some', b = input.match(/[AZ]+:[AZ]+.[AZ]+~[az]+/); console.log(b && b[0]); 

Answer 2

The backslash is interpreted as an escape character . So you're gonna have to add another backslash for each backslash. Then directly search for the last backslash and then slice the string:

var input = "\\\\initvalues\\PDSGJ:IO.HJ~some";
var index = input.lastIndexOf('\\');
var str = input.slice(index+1)
alert(str);

Answer 3

It is indeed correct, like the others already mentioned, that a backslash is interpreted as an escape character.

To output proper result, thus as a list.

var txt='\\\\initvalues\\PDSGJ:IO.HJ~some';
txt.split(/\\\\/).pop(0).split(/\\/)

(2) ["initvalues", "PDSGJ:IO.HJ~some"]