Explore how to debug in Uniapp subcontracting scenario

With the rapid development of the mobile application market, more and more developers are beginning to choose cross-platform technology for development. As one of the leaders, Uniapp has become the first choice of many developers for its powerful component-based development and efficient compilation experience. In Uniapp, subcontracting management of large applications can improve startup speed and user experience. But debugging after subcontracting has also become a problem. This article will explore how to debug in the Uniapp subcontracting scenario.

1. Definition of Subpackaging

Subpackaging in Uniapp refers to packaging the application into multiple parts and loading them on demand instead of loading all the code at once. Subpackaging is essentially a dynamic loading method that can load corresponding subpackages according to user needs.

2. Debugging in subcontracting scenarios

Subcontracting can improve the loading speed of the application, reduce the pressure on the main package, and improve the user experience. However, subcontracting also brings certain difficulties to application debugging. During debugging, we need to know which modules are in which sub-packages and how to load the corresponding sub-packages. Here are several debugging methods in subcontracting scenarios:

1. HBuilderX Debugging Tool

HBuilderX is the official development tool of Uniapp, and its built-in Uni-app Debugger provides The debug.js debugging method is adopted. We can set debug to true in manifest.json, then open the developer tools in the Chrome browser, and enter "debugger" in the Console to enter the debugging state. And you can also open the JS running log in HBuilder X to check whether the module is loaded successfully.

2. uni.require

In a sub-package, using require can only load modules under the current sub-package. If you want to load modules in other sub-packages, you can Use uni.require. As shown in the following code:

let test = uni.require(['subPackages/test/test.js']);

test.testFn();

uni.require will return a Promise object, and the target module can be obtained in resolve. The advantage of using uni.require is that you can dynamically load specified sub-packages, avoiding the performance problem of loading all codes at once.

3. Vue Devtools Debugging Tool

Vue Devtools is a browser plug-in officially launched by Vue.js, which can also be debugged in subcontracting scenarios. We can find the target module from the component tree of Vue Devtools and debug it.

3. Summary

Subcontracting can improve the loading speed of applications, but debugging in subcontracting scenarios is also a problem. The above introduces several debugging methods in subcontracting scenarios, which can help us quickly locate problems and improve development efficiency.

During the development process, we should reduce the number of subcontracts as much as possible to avoid too many subcontracts, which will affect application performance. In addition, during the development process, we also need to pay attention to the issue of path references to ensure that the dependencies between various subcontracts are correct.

The above is the discussion of this article on how to debug in the Uniapp subcontracting scenario. I hope it can inspire readers.

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