How to remove the first and the last character of a string

Question

Here you go

var yourString = "/installers/";
var result = yourString.substring(1, yourString.length-1);

console.log(result);

Or you can use .slice as suggested by Ankit Gupta

var yourString = "/installers/services/";

var result = yourString.slice(1,-1);

console.log(result);

Documentation for the slice and substring.

It may be nicer one to use slice like :

string.slice(1, -1)

I don't think jQuery has anything to do with this. Anyway, try the following :

url = url.replace(/^\/|\/$/g, '');

If you dont always have a starting or trailing slash, you could regex it. While regexes are slower then simple replaces/slices, it has a bit more room for logic:

"/installers/services/".replace(/^\/?|\/?$/g, "") 

# /installers/services/ -> installers/services
# /installers/services -> installers/services
# installers/services/ -> installers/services

The regex explained:

• ['start with' ^] + [Optional?] + [slash]: ^/?, escaped -> ^\/?
• The pipe ( | ) can be read as or
• ['ends with' $] + [Optional ?] + [slash] -> /?$, escaped -> \/?$

Combined it would be ^/?|/$ without escaping. Optional first slash OR optional last slash.
^{Technically it isn't "optional", but "zero or one times".}