Analysis of page jump function examples in Vue documents

Vue.js is an open source JavaScript framework and a progressive framework for building user interfaces. It has the advantages of efficiency, flexibility, and ease of use. In the Vue.js documentation, there is a very useful function for page jumps, namely $router.push(). This article will analyze this function in detail.

$router.push() is a routing jump function in the Vue.js framework, used to jump between different pages. To use this function, you need to introduce Vue-router into the application first. In the Vue.js application, all routing jumps are implemented through Vue-router. The framework realizes switching between different pages by changing the URL.

$router.push() mainly has two parameters: the first parameter represents the URL path that needs to be jumped, which can be a string or an object containing path information; the second parameter is optional , represents the callback function after route jump.

The following is a sample code that uses the $router.push() function to implement page jump:

this.$router.push('/home');

The above code indicates that after the user performs some operations, the page needs to jump to A page named "home".

In addition to directly using strings to represent paths, you can also use objects containing path information to better control the page jump process. The following code is an example of using an object to jump to a page:

this.$router.push({ path: '/home' });

The above code is completely equivalent to the previous example, except that an object is used instead of a string. In actual development, using objects for page jumps can improve the readability and maintainability of the code.

You can also pass some special parameters in $router.push(), such as query, params, name, etc., to better control the page jump. For example, the following code is an example of page jump by passing a parameter query:

this.$router.push({ path: '/home', query: { name: 'john' }});

The above code indicates jumping to a page named "home" with a parameter named "name" , whose value is "john". When the page jumps, this parameter can be obtained through the $router object:

console.log(this.$route.query.name); // 输出“john”

In addition to directly using strings or objects to jump paths, $router.push() can also use the route name to jump. For example:

this.$router.push({ name: 'home' });

The above code means jumping to the page corresponding to the route named "home". Compared with directly using the path to jump, this method can easily manage the routing of the page. When modifying the page path, you only need to modify the routing configuration file, and the corresponding jump code does not need to be changed.

It should be noted that when using $router.push() to jump to a page, you must ensure that the current Vue instance has been mounted on the DOM node, otherwise an error will occur. One solution is to perform the jump operation in the mounted function of the Vue instance.

To sum up, $router.push() is a very convenient Vue.js routing jump function. It can easily jump between different pages and supports a variety of parameter methods to meet the needs of development. or different needs. Proficiency in the $router.push() function can greatly improve the development efficiency and code readability of Vue.js applications.

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