技术提问：使用Vue.js是否会使jQuery库彻底过时？

Hey there! As someone who’s worked with both Vue and jQuery across dozens of projects, I can tell you this is a super common question—so let’s break it down without the hype.

First, let’s get clear on what each tool is for #

• Vue is a reactive UI framework built from the ground up for building dynamic, scalable applications (think SPAs, dashboards, or complex e-commerce sites). It handles state management, component reuse, and reactive data binding automatically—things jQuery was never meant to tackle.
• jQuery is a utility library created to fix cross-browser headaches and simplify DOM manipulation, event handling, and AJAX calls back when vanilla JavaScript was far less intuitive. It’s a “swiss army knife” for quick DOM tweaks, not a full framework.

So, is jQuery obsolete? Short answer: No— but its role has changed #

Let’s break down the scenarios where jQuery still shines, and where Vue takes over:

When jQuery is still the right tool #

• Small, simple projects: If you need to add a toggle menu, form validation, or a quick AJAX call to a static landing page, jQuery is faster to implement than setting up a full Vue project. No build tools, no component structure—just write a few lines and you’re done.
• Legacy codebases: Millions of existing apps rely on jQuery. Rewriting them in Vue would be expensive and unnecessary unless the app needs a complete overhaul. Teams still maintain these projects, so jQuery skills are still in demand.
• Niche plugins: There’s a massive ecosystem of jQuery plugins for everything from sliders to complex date pickers. While Vue has its own plugin library, some specialized tools only exist for jQuery, and teams often stick with them instead of rebuilding from scratch.

When Vue replaces jQuery (and you’ll want it to) #

• Dynamic, scalable apps: For SPAs or apps with frequent UI updates, Vue’s reactivity model keeps your code clean and maintainable. Instead of writing messy jQuery DOM manipulation spaghetti, you’ll use Vue’s directives like v-on:click or v-bind to tie UI elements directly to your app’s state.
• Component-based development: Vue’s component system lets you reuse UI elements (like buttons, modals, or form inputs) across your app—something jQuery can’t do natively without a lot of custom code. This makes your codebase easier to debug and scale.

Can you use them together? Yes, but it’s usually a last resort #

There’s no hard rule against mixing Vue and jQuery. For example, if you have a legacy jQuery plugin that you need to integrate into a Vue app, you can do it (just be careful: jQuery manipulates the DOM directly, which can clash with Vue’s virtual DOM—you’ll need to make sure they don’t overwrite each other’s changes).

That said, it’s better to find a Vue alternative or wrap the jQuery plugin into a Vue component if possible. Mixing the two can lead to confusing code down the line.

Final takeaway #

Vue isn’t here to “kill” jQuery—it’s here to solve a different set of problems. jQuery will stick around for small tweaks, legacy projects, and niche use cases, but for modern, scalable applications, Vue (and other frameworks like React or Angular) is the better choice. So no, jQuery isn’t obsolete yet—but it’s no longer the go-to tool for every web development task.

内容的提问来源于stack exchange，提问作者Tushar Kshirsagar