What is the usage of node_modules directory in ember?
I could see this directory created accross my ember application. When does it get created and what is the significance?
What harm if i delete this directory?
It's a directory for npm/yarn. It's created by running npm install or yarn. Theese commands install all dependecies specified in the package.json file into the node_modules directory. You need them to run any ember commands. If you delete the folder you can recreate it with npm install/yarn. It's not checked into source control.