If you come accross issue with Angular ng build in prod mode for out of memory issue, like below
Command: ng build --prod
Include command with "node --max_old_space_size=5120 ./node_modules/@angular/cli/bin/", you can increase the size however wanted. This will solve the issue, we can also update this size in environment variables of system.
Command: node --max_old_space_size=5120 ./node_modules/@angular/cli/bin/ng build --prod
