Javascript parsing URL using parseURL function

Question

I am trying to write code to parse URL using Javascript parseURL function

Input are some of the URL

1.http://www.cnn.com/index.html
2.https://yahoo.com/movies/index.html?refresh=1

Expected Output

1.http,www.cnn.com
2.https,yahoo.com,refresh=1

I have tried to write code

process.stdin.resume();
process.stdin.setEncoding('utf8');

var stdin = '';
process.stdin.on('data', function parse(chunk) {
  stdin += chunk;
}).on('end', function() {
  var lines = stdin.trim().split('\n');
  for(var i=0; i<lines.length; i++) {
    process.stdout.write(lines[i]);
  }
});

But I am unable to get expected output

Have you considered using the standard url package that's built-into node.js — Evert
– Evert, Commented Jun 14, 2019 at 20:51

ggorlen · Accepted Answer · 2019-06-14 20:52:21Z

2

The pattern /^.+(?=:\/\/)|(?<=:\/\/)[^\/]+|(?<=\?).+$/g enumerates the following three possibilities, matching any of them with alternation:

the beginning of the string up until ://
:// until the next /
everything after a ? until the end of the string.

const pattern = /^.+(?=:\/\/)|(?<=:\/\/)[^\/]+|(?<=\?).+$/g;
[
  "1.http://www.cnn.com/index.html",
  "2.https://yahoo.com/movies/index.html?refresh=1"
].forEach(e => console.log(e.match(pattern)));

answered Jun 14, 2019 at 20:52

ggorlen

59.3k8 gold badges119 silver badges173 bronze badges

Sign up to request clarification or add additional context in comments.

6 Comments

Karan Over a year ago

Thanks for quick reply, could you please help me figure out where should I add this in my code? What changes should I make in the code? Thank you

ggorlen Over a year ago

Hard to say--it looks like you're returning an object with 4 properties, but only 2-3 appear in your split strings. You'll need to provide more information, but basically you have an array of 2-3 elements and can assign them to your object properties as you wish.

Karan Over a year ago

Okay I have edited the code, could you suggest where should I add your code? In the end I just want a seperate String

ggorlen Over a year ago

Is each chunk a single line? If so, you can put the code in the listener. Or, take all the input, then operate on the result string s. Split it by lines and use the regex on each line as I'm doing. Again, it's hard to say, because I don't know what your stdin is accepting. But basically, that's all boilerplate--just show what s and/or chunk looks like exactly and there's no ambiguity.

Karan Over a year ago

Yes each chunk is a single line

|

Collectives™ on Stack Overflow

Javascript parsing URL using parseURL function

1 Answer 1

6 Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

6 Comments

Your Answer

Sign up or log in

Post as a guest

Related