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js get query param
<![CDATA[const queryString = window.location.search;
const parameters = new URLSearchParams(queryString);
const value = parameters.get('key');]]>
javascript reading query parameter
<![CDATA[// example url: https://mydomain.com/?fname=johnny&lname=depp
const urlParams = new URLSearchParams(window.location.search);
const firstName = urlParams.get('fname'); // johnny]]>
javascript get query parameter
<![CDATA[function getUrlParameter(name) {
name = name.replace(/[\[]/, '\\[').replace(/[\]]/, '\\]');
var regex = new RegExp('[\\?&]' + name + '=([^&#]*)');
var results = regex.exec(location.search);
return results === null ? '' : decodeURIComponent(results[1].replace(/\+/g, ' '));
};]]>
javascript get Query params from URL
<![CDATA[const getParameters = (URL) => {
URL = JSON.parse('{"' + decodeURI(URL.split("?")[1]).replace(/"/g, '\\"').replace(/&/g, '","').replace(/=/g, '":"') +'"}');
return JSON.stringify(URL);
};
getParameters(window.location)
// Result: { search : "easy", page : 3 }
]]>
get query params
<![CDATA[import React, { useEffect, useState } from "react";
import { useLocation } from "react-router-dom";
function CheckoutDetails() {
const location = useLocation();
const [amountValue, setAmountValue] = useState(1);
// function to get query params using URLSearchParams
useEffect(() => {
const searchParams = new URLSearchParams(location.search);
if (searchParams.has("amount")) {
const amount = searchParams.get("amount");
setAmountValue(parseInt(amount, 10));
} else {
setAmountValue(1);
}
}, [location]);
return (
<p>Amount: {amountValue}</p>
)
]]>
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