CODE EXAMPLE FOR JAVASCRIPT

ineffective mark-compacts near heap limit allocation failed - javascript heap out of memory angular

// Use upto 6 GB (So, you can change 6000 in below, based on your need)

scripts: {
  "build": "node --max_old_space_size=6000 ./node_modules/@angular/cli/bin/ng build", 
  "serve": "node --max_old_space_size=6000 ./node_modules/@angular/cli/bin/ng serve"
}