URLSearchParams -添加参数

Question

我似乎无法向URL添加参数/查询。我试图在url中添加参数。我试着用.set()和.append()来做这件事，但这两件事似乎都不像我想的那样。我是否误解了这些方法的意义。预期的产出应是：

http://newsapi.org/v2/top-headlines?country=gb&q=some_word

代码：

​

const url = new URL('/v2/top-headlines', 'http://newsapi.org')
const params = new URLSearchParams(url.search);
params.set('country', 'gb');
params.append('q', 'some_word')
console.log(url); // All good http://newsapi.org/v2/top-headlines
console.log(url.search); // empty object
console.log(params); // Empty string

​

Answer 1

尝尝这个

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const url = new URL("/v2/top-headlines", "http://newsapi.org");

url.searchParams.append("country", "gb");
url.searchParams.append("q", "some word");

console.log(url.toString());

​

看见

• https://developer.mozilla.org/en-US/docs/Web/API/URL/URL