I have the following String example :
test_client_guide..mydomain.fr.global.com=198787879898977979
I would like to extract in a variable the following String :
.mydomain.fr.global.com
In fact, i would like to get the String which is between the first "." and the "=" character.
How can i do that ?
Thanks a lot
You could use regular expressions for that.
var string = 'test_client_guide..mydomain.fr.global.com=198787879898977979';
alert(string.replace(/^.*?\.(.+?)=.*$/, '$1'));
This would replace the following pattern:
^ - start of the string.*?\. - zero or more characters until the first .(.+?)= - one or more characters until the first = (captured as $1).*$ - zero or more characters until the end of the stringwith:
$1 - the capture aboveTry this:
<script>
var myString = "test_client_guide..mydomain.fr.global.com=198787879898977979";
var str=myString.substring(myString.indexOf (".")+1,myString.indexOf("="));
alert(str);
</script>
Use a regex, something like:
^.*?\.(.*)=
Would give you the piece you wanted in the first capture group.
See: http://rubular.com/r/WDIO27zriw
^: start of string
.*?: Match any character, non-greedy (the ? is key to making it not greedy)
\.: Match the first . - note it has to be escaped because . is a character class in regex (see the previous part)
(.*): Match any character (.) and put it in a capture group (the - ())
=: Match the =
.* lazy by making it .*?, so that it will take the first occurrence of that character, instead of the last occurrence. There'd be a difference in the result if you'd get to handle strings such as "foo..bar.baz=1337&quux=quok", since it'll match everything until the last equals sign.
= and it's not clear in the case of more than one = if the OP would want the first or the last (probably the first).You can do this with substr and indexOf:
var exampleString = "test_client_guide..mydomain.fr.global.com=198787879898977979";
var firstdot = exampleString.indexOf('.')+1;
var firsteq = exampleString.indexOf('=', firstdot);
exampleString = exampleString.substring(firstdot, firsteq);
//exampleString now contains the contents ".mydomain.fr.global.com"
This gets your string from after the first period until the first equals sign after that.
this may be helpful
var s="test_client_guide..mydomain.fr.global.com=198787879898977979";
var _s=s.substring(s.indexOf("mydomain."),s.length);
_s=_s.substring(_s.indexOf("="),0)
console.log(_s)
indexOfto find the positions of the characters and then usesubstrto extract the substring.