How to modify url parameters in jquery

In recent years, with the continuous updating of front-end technology, using jquery to modify url parameters has become one of the common operations. This article will introduce in detail how jquery modifies url parameters.

1. Get url parameters

Before modifying the url parameters, we need to get the parameters of the current url first. jquery provides a convenient method to achieve this function: $. urlParam(name)

The function of this method is to obtain the specified parameters of the current url. For example:

// 当前url：https://www.example.com/index.html?id=123&name=hello
// 获取id参数
var id = $.urlParam('id');
console.log(id); // 输出：123

// 获取name参数
var name = $.urlParam('name');
console.log(name); // 输出：hello

2. Modify the url parameters

After obtaining the url parameters, we can modify them. Here are three commonly used methods to modify URL parameters.

1. Replace parameter value

We can modify the url parameter by modifying the value of the url parameter. In the following code example, we replace the id parameter value in the url with 456:

// 当前url：https://www.example.com/index.html?id=123&name=hello
// 替换id参数的值
var newUrl = window.location.href.replace(/id=123/g, 'id=456');
console.log(newUrl); // 输出：https://www.example.com/index.html?id=456&name=hello

2. Add new parameters

Adding new parameters in the url is also a common operation . In the following code example, we add a new parameter age to the current url and set its value to 20:

// 当前url：https://www.example.com/index.html?id=123&name=hello
// 添加新参数age=20
var newUrl = window.location.href + '&age=20';
console.log(newUrl); // 输出：https://www.example.com/index.html?id=123&name=hello&age=20

3. Delete the specified parameter

Sometimes we need Delete a parameter in the url. In the following code example, we will delete the name parameter in the current url:

// 当前url：https://www.example.com/index.html?id=123&name=hello
// 删除name参数
var newUrl = window.location.href.replace(/&name=hello/g, '');
console.log(newUrl); // 输出：https://www.example.com/index.html?id=123

3. Summary

Through the introduction of this article, we have learned how to use jquery to obtain and modify url parameters. The above example only briefly demonstrates the method. In actual use, we also need to perform parameter screening, splicing, encoding and other operations according to needs. Therefore, in actual development, we need to flexibly use these methods to process url parameters according to specific business needs.

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