URL and URLSearchParams in JavaScript make working with query parameters easier by handling encoding, decoding, and parameter parsing automatically.
Creating a URL object involves providing a full URL string, which the browser breaks into structured fields.
url.search gives the full query string, while url.searchParams allows working with individual parameters using methods like .get(), .getAll(), .has(), and .entries().
Query parameters can repeat, and .getAll() is useful for retrieving all values.
Updating parameters is simplified with methods like .set(), .append(), and .delete().
URLSearchParams provides full iteration support, allowing looping through key-value pairs or using .forEach() for a different approach.
Working with URLs in JavaScript involves structured parsing and live updates, ensuring that changes to parameters reflect in the main URL object.
The URLSearchParams class can work independently on raw query strings, offering similar functionality without the full URL object.
Automatic encoding, decoding, and syncing of parameters simplify handling query strings.
The browser's internal structures handle URL parsing, making interactions with URLs seamless and accurately reflecting the current state.