URL Parser Utility

Parse and manipulate URL components with query string support

javascript (ES2020) 2025-11-12 url utility parsing query

Description

A utility class for parsing URLs, extracting components, and manipulating query parameters. Handles encoding/decoding automatically.

Features

  • Parse URL components (protocol, host, path, query)
  • Query parameter manipulation
  • URL building from components

Code

RAW 
class URLParser {  constructor(url) {    this.url = new URL(url);  }    getProtocol() {    return this.url.protocol.slice(0, -1);  }    getHost() {    return this.url.host;  }    getPath() {    return this.url.pathname;  }    getQueryParam(key) {    return this.url.searchParams.get(key);  }    setQueryParam(key, value) {    this.url.searchParams.set(key, value);    return this;  }    removeQueryParam(key) {    this.url.searchParams.delete(key);    return this;  }    getAllQueryParams() {    const params = {};    this.url.searchParams.forEach((value, key) => {      params[key] = value;    });    return params;  }    toString() {    return this.url.toString();  }}module.exports = URLParser;
RAW 
const URLParser = require('./urlParser');const parser = new URLParser('https://example.com/path?foo=bar');console.log('Protocol:', parser.getProtocol());console.log('Host:', parser.getHost());console.log('Path:', parser.getPath());// Modify query paramsparser.setQueryParam('page', '1');console.log('Updated URL:', parser.toString());

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