split variables from array-CodePudding

I have an array of urls that get pulled in with "videoJsonUrl" and i'm trying to get a variable from the urls that come in _id=XXXXXXXX this is what I have so far, which works if I add the url in it manually:

const VideoUrl = "https://player.vimeo.com/external/444937644.sd.mp4?s=a6aa1fdd06df967a0cfc300dbfef1a24927e4f61&profile_id=165&oauth2_token_id=57447761"
const strs = VideoUrl.split('_id=');
const videoId = strs.at(-1)
console.log("Get Content Video ID",videoId);

I cant for the life of me get it to work "videoJsonUrl" though, I think the problem is that "videoJsonUrl" actually contains 3 urls, like this:

can anyone give me any pointers on how to do it?

CodePudding user response：

You can construct a new URL object from each address, then use its searchParams property to get the parameter value of interest:

const urls = [
  'https://player.vimeo.com/external/444937644.sd.mp4?s=a6aa1fdd06df967a0cfc300dbfef1a24927e4f61&profile_id=165&oauth2_token_id=57447761',
  'https://player.vimeo.com/external/444937644.sd.mp4?s=a6aa1fdd06df967a0cfc300dbfef1a24927e4f61&profile_id=165&oauth2_token_id=57447823',
  'https://player.vimeo.com/external/444937644.sd.mp4?s=a6aa1fdd06df967a0cfc300dbfef1a24927e4f61&profile_id=165&oauth2_token_id=57447915',
];

const results = urls.map(url => {
  const id = new URL(url).searchParams.get('oauth2_token_id');
  return id;
});

console.log(results); // [ "57447761", "57447823", "57447915" ]

CodePudding user response：

Since ids are all numeric, use a regular expression with a capturing group.

const rx = /_id=(\d )/g
const m = rx.exec(url)
const ids=[]
while (m) {
 ids.push(m[1])
 m = rx.exec(url)
}

Use a Set if you need unique values. Use a Map and another capturing group if you need to capture the prefixed id name.

Or just parse the query string and get the values directly from the query map.

CodePudding user response：

URLSearchParams instances have a built-in entries iterator so this should also be fine:

    const urls = [
    'https://player.vimeo.com/external/444937644.sd.mp4?s=a6aa1fdd06df967a0cfc300dbfef1a24927e4f61&profile_id=165&oauth2_token_id=57447761',
    'https://player.vimeo.com/external/444937644.sd.mp4?s=a6aa1fdd06df967a0cfc300dbfef1a24927e4f61&profile_id=165&oauth2_token_id=57447823',
    'https://player.vimeo.com/external/444937644.sd.mp4?s=a6aa1fdd06df967a0cfc300dbfef1a24927e4f61&profile_id=165&oauth2_token_id=57447915',
  ];
  
const results = urls.map(url => {
    const { oauth2_token_id } = Object.fromEntries(new URL(url).searchParams)
    return oauth2_token_id;
});
  
  console.log(results) // [ '57447761', '57447823', '57447915' ]