jQuery vs React — React Technical Interview Questions & Answers

jQuery vs React

jQuery vs React

  • jQuery selects nodes and mutates them: $('#n').text(Number($('#n').text())+1). React: setCount(c => c+1) and the text comes from state. Two different owners of the DOM. Mixing $() inside React after mount fights reconciliation — don’t.
  • jQuery still fine for a tiny static page. A stateful SPA is why teams picked React.
  • jQuery vs React — output: imperative vs state. Don’t mix $() into React trees.

Technical Interview Tip: Imperative vs declarative. Don’t mix.

Code Examples for jQuery vs React

Example

// jQuery vs React
console.log("jQuery: $('#n').text(Number($('#n').text())+1)");
console.log("React : setCount(c => c+1) → UI");

jQuery vs React — output: imperative vs state. Don’t mix $() into React trees.

How to Explain jQuery vs React to an Interviewer

How do you compare jQuery vs React on the board? One real difference, one shared idea.

jQuery : imperative DOM. React : state → UI.

What naming trap should you avoid?

jQuery : imperative DOM.

When would you still pick the other side?

Team skill Existing codebase