NodeJS urlSearchParams[Symbol.iterator]() Method

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The NodeJS URLSearchParams[Symbol.iterator]() method returns an ES6 Iterator allowing iteration through all the name-value pairs present in the query string. This method is an alias for URLSearchParams.entries() method.

The iterator returns the name-value pairs in the same order as they present in the query string. Each returned item of the iterator is a JavaScript array. The first item present in the array is the name and the second item is the value, together forming a name-value pair.

The URLSearchParams API provides read and write access to the query of a URL. This class is also available on the global object.

Syntax

Following is the syntax of the NodeJS URLSearchParams[Symbol.iterator]() method

URLSearchParams[Symbol.iterator]()

Parameters

This method does not accept any parameters.

Return Value

This method returns an ES6 iterator over each of the name-value pairs in the query string.

Example

If the input URL string contains a query segment, the NodeJS URLSearchParams[Symbol.iterator]() method will return an iterator over each of the name-value pairs from the query string.

In the following example, we are trying to get the name-value pairs from the input query string.

const url = require('node:url');

let Myurl = new URL('https://www.tutorialspoint.com?10=Ten&20=Twenty&30=Thirty&40=Fourty');
console.log("URL: ", Myurl.href);

let params = new URLSearchParams('10=Ten&20=Twenty&30=Thirty&40=Fourty');
console.log("Query portion of the URL: " + params.toString());
console.log("The name/value pairs are: ")

for (const [key, value] of params.entries()) {
    console.log(JSON.stringify(`${key}, ${value}`));
}

Output

On executing the above program, it will generate the following output

URL:  https://www.tutorialspoint.com/?10=Ten&20=Twenty&30=Thirty&40=Fourty
Query portion of the URL: 10=Ten&20=Twenty&30=Thirty&40=Fourty
The name/value pairs are: 
"10, Ten"
"20, Twenty"
"30, Thirty"
"40, Fourty"