new URLSearchParams(data)
时间: 2023-10-26 13:47:06 浏览: 40
`new URLSearchParams(data)` is a JavaScript constructor that creates a new URLSearchParams object. It is used to handle query string parameters in a URL.
The `data` parameter is optional and can be an object, a string, or another URLSearchParams object. If provided, it initializes the URLSearchParams object with the given data.
Here's an example usage:
```javascript
const data = { name: 'John', age: 30 };
const params = new URLSearchParams(data);
console.log(params.toString()); // Output: "name=John&age=30"
```
In the example above, we pass an object `data` with two properties (`name` and `age`) to the constructor. The resulting `params` object represents the query string parameters, which can be retrieved using the `toString()` method.
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