nodejs build code example
Example 1: docker run npm install express syntax
FROM node:12
# Create app directory
WORKDIR /usr/src/app
# Install app dependencies
# A wildcard is used to ensure both package.json AND package-lock.json are copied
# where available (npm@5+)
COPY package*.json ./
RUN npm install
# If you are building your code for production
# RUN npm ci --only=production
# Bundle app source
COPY . .
EXPOSE 8080
CMD [ "node", "server.js" ]
Example 2: new node js project vs code
npm install -g express-generator
Example 3: javascript running at node
const inNode = new Function('try{return this===global;}catch(err){return false;}')();