Hi,
I have this string:
var referer = "https://example.net:3000/page?room=room2"
I want to get only what comes after =room no matter its position so I tried this:
var value = referer.match(/[?&;](.+?)=([^&;]+)/g);
but Im getting this ["?room=room2"] whereas the expected output is just 2. Please see this fiddle: https://jsfiddle.net/8fduhLep/
What am I missing here?
Thank you.
** Updated **
If you would like the numbers that come after =room - this does it
let value = referer.match(/=room(\d+)/);
Yields
[
'=room2',
'2',
index: 34,
input: 'https://example.net:3000/page?room=room2',
groups: undefined
]
A nicer solution is
let url = new URL(referer);
let roomNumber = url.searchParams.get('room').replace(/[^\d]+/,'');
You can use substring and indexOf:
var referer = "https://example.net:3000/page?room=room2"
const res = referer.substring(referer.indexOf('=room') + 5) //add 5 to account for length of string
console.log(res)If it's not the only parameter, you can parse the URL and get the value of the room parameter, then use the method above:
var referer = "example.net:3000/page?room=room2&someotherquery=something"
var roomVal = new URL("https://example.net:3000/page?room=room2").searchParams.get('room')
const res = roomVal.substring(roomVal.indexOf('=room') + 5)
console.log(res)With regex:
var referer = "example.net:3000/page?room=room2&someotherquery=something"
const regex = /room=room(\w+)/g
const res = regex.exec(referer)[1]
console.log(res)