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npm vs yarn 2019 which javascript package manager is faster?

Test environment

• device: MacBook Air 2017
• node version: 12
• yarn version: 1.17.3
• npm version: 6.3.0
• test datetime: 7 Aug 2019 00:30 A.M. Bangkok time

Internet speed https://speedtest.trueinternet.co.th)

Sample package.json

{

"name": "demo-app-react",

"version": "0.1.0",

"private": true,

"dependencies": {

"axios": "^0.19.0",

"node-sass": "^4.12.0",

"react": "^16.8.6",

"react-dom": "^16.8.6",

"react-router-dom": "^5.0.1",

"react-scripts": "3.0.1"

}

}

Test yarn performance scenario

1. remove node_modules
2. remove yarn.lock
3. measure yarn speed by running => start=$(date +'%s') && yarn && echo "It took $(($(date +'%s') - $start)) seconds"

Test npm performance scenario

1. remove node_modules
2. remove package-lock.json
3. measure yarn speed by running => start=$(date +'%s') && npm i && echo "It took $(($(date +'%s') - $start)) seconds"

Result

Package manager / Speed (seconds)	Round 1	Round 2	Round 3
npm	104	72	72
yarn	200	171	157