how to Extract Link part from a string in javascript

Question

Having a string of the below structure how can i extract only the link portion of it. https://qr.1688.com/s/OaPpTrzR CZ0736

https://qr.1688.com/s/2Q8NXya1 CZ3050

const getShortUrl = (string)  =>{
    let query = string.trim().replaceAll('"', '');
    if(query.indexOf('https://qr') >= 0){
          return query.substring(query.indexOf('https://qr'));
        
    }
  }


But the above code return something like `https://qr.1688.com/s/2Q8NXya1 CZ3050` but what i wanted is something like this `https://qr.1688.com/s/2Q8NXya1`

how can i extrract this portion of string.

Does this answer your question? Extracting for URL from string using regex — tevemadar
– tevemadar, Commented Mar 4, 2023 at 13:18

Akrem Chabchoub · Accepted Answer · 2023-03-04 13:11:08Z

3

You can use split:

return query.split(' ')?.[0];

answered Mar 4, 2023 at 13:11

Akrem Chabchoub

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Tamas Szoke · Accepted Answer · 2023-03-04 13:15:55Z

3

You can split the string into parts by the space with the .split(" ") method. And then just use the first element of the created array.

Example

query = query.split(" ")[0]

With your code

const getShortUrl = (string) => {
  let query = string.trim().replaceAll('"', '');
  query = query.split(" ")[0]
  if (query.indexOf('https://qr') >= 0) {
    return query.substring(query.indexOf('https://qr'));

  }
}

const shortUrl = getShortUrl("https://qr.1688.com/s/OaPpTrzR CZ0736")
console.log(shortUrl)

answered Mar 4, 2023 at 13:15

Tamas Szoke

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