02 Package.json - biswajitsundara/Protractor GitHub Wiki

The package.json file in angular projects is like the pom.xml in maven projects. It contains dependencies, project properties, description, author, scripts etc.

• Open blank folder in visual studio editor
• Go to terminal and type npm init to create package.json
• Here we can specify all the dependencies the project needs to download
• It will ask some details like package name, version etc. Just keep pressing enter
• Finally is this ok? say yes.

• Go to terminal and run the command npm install protractor
• it will add protractor dependencies to package.json
• but we can't do this for all the dependencies
• so just add all the dependencies. and then type npm install

• Check the protractor type script example https://github.com/angular/protractor/tree/5.4.1/exampleTypescript
• Open the file package.json
• Copy the dependencies to the file we have created.
• Run the command npm install
• When the command is issued, it goes to package.json file ->dependencies section and downloads everything.

By default jasmine doesn't understand typescript, so we are adding these two dependencies

"@types/jasmine": "2.5.41",
"@types/jasminewd2": "^2.0.0",

whenever we see something like @types/ that means we are adding some support for Typescript

• Once the npm install command is completed. It will create a new folder node_modules and put all the dependencies in this folder
• Please note all the installed dependencies are local to the project.
• Means if we create another project then we need to create another package.json file & run npm install
• If anything goes wrong then delete this node_modules folder & then run the npm install again