在Node.js中的package.json中没有显示依赖项

I am new to node.js. I know when I install a new module in node.js using npm install it gets installed but in package.json i cant find the package name in dependencies. I know i can type it out but it should appear when i install it using command prompt it should appear. Here's my package.json file. `I am new to node.js. I know when I install a ne