What are GitHub Actions and how do they help in CI/CD?

GitHub Actions is GitHub’s built-in Continuous Integration/Continuous Deployment

(CI/CD) platform.

It lets you automate tasks — like running tests, building code, or deploying apps — every

time code is pushed or a PR is opened.

Example:

You can create a workflow file .github/workflows/test.yml:

name: Run Tests

on: [push, pull_request]

jobs:

test:

runs-on: ubuntu-latest

steps:

• uses: actions/checkout@v4
• name: Install dependencies

run: npm install

• name: Run tests

run: npm test

Whenever code is pushed, GitHub automatically runs your tests — ensuring quality before

merging.