I have these strings:
baseUrl = "http://www.example.com"
baseUrl = "https://secure.example-server.com:443"
Can someone tell me how I can extract the server information from baseUrl so I can get either "example" and "example-server"
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2possible duplicate of How do I parse a URL into hostname and path in javascript?Panther– Panther2015-07-07 07:41:01 +00:00Commented Jul 7, 2015 at 7:41
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Regex. Just a regex.briosheje– briosheje2015-07-07 07:41:02 +00:00Commented Jul 7, 2015 at 7:41
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[Posible Duplicate] here http://stackoverflow.com/questions/8498592/extract-root-domain-name-from-string. Hope this helps.hungndv– hungndv2015-07-07 07:42:34 +00:00Commented Jul 7, 2015 at 7:42
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5 Answers
You can use regex:
baseUrl.match(/\.(.*?)\.co/i)[1];
Regex Explanation
/: Delimiters ofregex\.: Matches.literal(need to be escaped)(): Capturing group.*?: Match any stringco: Matches stringcoi: Match in-case-sensitive[1]: Get the capturing group
Regex Visualization
Comments
You can split strings at certain chars with split("."); (see http://www.w3schools.com/jsref/jsref_split.asp) then you can compare the results to your predefined words.
or you take the 2nd element of the results which would usually(?) be what you are looking for.
Comments
Take a look to this free library: http://medialize.github.io/URI.js/.
Comments
If you just want to extract string between two '.'s (or Domain name in URL), you can try this:
var firstDotPos = baseUrl.indexOf(".");
var secondDotPos = baseUrl.indexOf(".",firstDotPos);
var yourString = baseUrl.substring(firstDotPos + 1, 18);
console.log(yourString )
Comments
You can split it into an array with split() and extract the required one with slice() as follows:
Input
baseUrl = "http://www.example.com"
baseUrl2 = "https://secure.example-server.com:443"
const base = baseUrl.split(".")
const base2 = baseUrl2.split(".")
console.log("Array1 :: ",base)
console.log("Array2 : ",base2)
console.log(base.slice(-2,-1))
console.log(base2.slice(-2,-1))
Output
Array1 :: ["http://www","example","com"]
Array2 : ["https://secure","example-server","com:443"]
["example"]
["example-server"]
