Parse Query Params in JS | Dataford Interview Questions

Implement a method to parse query params in JS.

Asked in the Javascript for UI stage. For this SQL version, treat each request URL as input and preserve percent-encoded text.

Output

One row per non-empty query parameter.
Return request_id, param_name, param_value, and param_position.
Preserve repeated parameters and empty values, exclude parameters with empty names, and order by request_id then param_position.

requests

Column	Type	Description
request_idPK	INT	Unique request identifier
request_url	TEXT	URL containing an optional query string

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Implement a method to parse query params in JS.

Asked in the Javascript for UI stage. For this SQL version, treat each request URL as input and preserve percent-encoded text.

One row per non-empty query parameter.
Return request_id, param_name, param_value, and param_position.
Preserve repeated parameters and empty values, exclude parameters with empty names, and order by request_id then param_position.

requests

Column	Type	Description
request_idPK	INT	Unique request identifier
request_url	TEXT	URL containing an optional query string

Your question is Parse Query Params in JS. Start with the requirements and the one table in the Question tab.

Run and submit as often as you like. When you're ready, talk me through your approach or go straight to the code.