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getURLParameters

TS JS Deno

Returns an object containing the parameters of the current URL.

Use String.prototype.match() with an appropriate regular expression to get all key-value pairs, Array.prototype.reduce() to map and combine them into a single object. Pass location.search as the argument to apply to the current url.

typescript
type URLParamValue = { [key: string]: string | string[] };

export const getURLParameters = (url: string) => {
return (
url.match(/([^?=&]+)(=([^&]*))/g)?.reduce((a: any, v: string) => {
const [key, value] = v.split("=");
if (a[key]) {
a[key] = (
(typeof a[key] === "string" ? [a[key]] : a[key]) as string[]
).concat(value);
} else {
a[key] = value;
}
return a;
}, {} as URLParamValue) ?? {}
);
};
typescript
getURLParameters("http://url.com/page?name=Adam&surname=Smith"); // {name: 'Adam', surname: 'Smith'}
getURLParameters("google.com"); // {}
getURLParameters("http://url.com/page?name=Adam&surname=Smith&surname=Sm"); // { name: "Adam", surname: ["Smith", "Sm"] }
getURLParameters(
"http://url.com/page?name=Adam&surname=Smith&surname=Sm&surname=Tm"
); // { name: "Adam", surname: ["Smith", "Sm", "Tm"] }