React · Theory

Current React Version

Theory

43/94

Current React Version

Current version means whatever is in that repo’s package.json today — not a blog title from 2019. Open dependencies.react. Say the major. Mention react-dom sits next to it.

If they ask ‘latest’, be honest: look it up, don’t invent. Interviewers care that you know where to read the version and that 18+ uses createRoot.

Current React Version — output — react 18.3.1 / react-dom 18.3.1. Same major on both packages.

Exam tip

Where to look + createRoot if 18+.

Example

// Current version
const pkg = { react: "18.3.1", "react-dom": "18.3.1" };
console.log("react", pkg.react);
console.log("react-dom", pkg["react-dom"]);

Current React Version — output: react 18.3.1 / react-dom 18.3.1. Same major on both packages.

Short notes

Usepackage.json → react.
RuleSame major as react-dom.
TrapFake ‘latest’ dates.

React · Theory

Current React Version

← All stacks

Theory

43/94

Current React Version

Current version means whatever is in that repo’s package.json today — not a blog title from 2019. Open dependencies.react. Say the major. Mention react-dom sits next to it.

If they ask ‘latest’, be honest: look it up, don’t invent. Interviewers care that you know where to read the version and that 18+ uses createRoot.

Current React Version — output — react 18.3.1 / react-dom 18.3.1. Same major on both packages.

Exam tip

Where to look + createRoot if 18+.

Example

// Current version
const pkg = { react: "18.3.1", "react-dom": "18.3.1" };
console.log("react", pkg.react);
console.log("react-dom", pkg["react-dom"]);

Current React Version — output: react 18.3.1 / react-dom 18.3.1. Same major on both packages.

Short notes

Usepackage.json → react.
RuleSame major as react-dom.
TrapFake ‘latest’ dates.

Current React Version

Example

Short notes

Questions

Current React Version

Example

Short notes

Questions