1 0 1 0 1 0 0 1 0 1 0 1 0 0 0 CSS VARIATIONS 1 1 0 1 1 0 0 0 1 1 0 1 0 1 1 0 1 DATA STORAGE 1 0 1 0 0 0 0 1 1 1 1 1 1 1 0 1 1 1 0 1 DEPLOY & RELEASE 0 0 0 0 1 1 0 1 0 0 0 1 0 0 THE DOM 0 1 1 1 1 0 0 0 0 1 0 1 0 1 1 1 0 1 ENVIRONMENTS 0 1 0 0 0 0 1 0 0 1 EVENTS 0 1 1 1 1 1 0 0 1 0 0 1 0 1 0 0 GARBAGE COLLECTION 1 0 0 0 1 1 0 0 1 0 0 HTTP 0 0 1 0 0 1 0 0 0 1 0 1 IMPORTS 0 0 0 1 0 0 1 0 1 0 0 0 INDEXING 0 0 1 1 1 1 1 0 0 1 1 0 1 1 1 INHERITANCE 0 1 0 1 0 1 1 0 1 0 1 0 1 1 JSON 0 1 0 1 0 0 0 1 0 1 0 1 0 KERNEL 1 1 0 0 0 1 0 1 0 1 LOGGING 0 1 0 1 0 1 1 1 0 1 1 0 1 1 OBSERVABILITY 0 0 0 0 1 1 0 1 1 0 0 1 1 1 0 0 1 OOP 1 0 1 0 0 0 0 0 0 1 1 0 0 1 0 0 1 1 PACKAGE MGRS 0 0 1 1 1 0 1 1 1 1 0 PERFORMANCE 1 1 1 1 0 0 0 1 1 1 0 0 0 0 1 0 PROCESS.ENV 1 1 1 0 1 1 1 0 0 1 1 0 PROCESSES 0 1 0 1 1 1 0 1 1 1 0 1 0 0 1 0 PROMISES 1 1 1 0 1 1 0 0 1 1 0 1 0 0 PUB/SUB 1 1 1 0 1 1 1 1 0 0 1 ROUTING 1 0 1 1 0 0 0 0 0 1 1 1 1 1 1 1 1 1 SANITIZATION 1 1 0 1 1 1 1 1 1 0 0 0 0 1 1 1 1 0 0 1 SERVERS & CLIENTS 1 1 1 1 1 1 0 1 0 0 1 0 1 0 1 1 1 0 SESSIONS 0 1 1 1 0 1 1 1 1 0 0 1 0 0 1 1 1 0 1 TESTING 1 0 1 0 0 1 0 1 1 0 CORE WEB VITALS 0 0 0 1 0 1 1 0 1 1 0 1 1 0 0 WEBHOOKS 0 0 1 0 1 1 0 0 0 1 0 0 0 0 1 0 1 1 0 0 ACCESSIBILITY 0 0 0 0 1 0 1 0 1 0 1 0 0 0 APIS 1 1 1 0 0 1 1 0 0 1 1 0 1 0 0 1 ASYNC 0 1 0 1 0 1 0 1 1 1 0 0 1 0 AUTH 0 1 1 0 0 0 0 1 0 1 BENCHMARKING 1 1 1 0 0 0 0 1 0 0 0 0 BINARY 0 1 1 0 1 0 0 1 1 1 0 0 BUILDS 0 0 1 0 1 1 0 0 0 1 1 1 0 1 CALLBACK FNS 0 1 1 0 0 1 1 0 0 1 0 1 1 1 1 CI/CD 1 1 1 0 1 1 1 0 0 0 THE CLOUD