Angular Ng Build out of memory issue

 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