chore: Add use strict

metrics/heapSizeAndUsed.js

@@ -1,3 +1,4 @@
+'use strict'
 const safeMemoryUsage = require('./helpers/safeMemoryUsage')
 const NODEJS_HEAP_SIZE_TOTAL = 'nodejs_heap_size_total_bytes'
 const NODEJS_HEAP_SIZE_USED = 'nodejs_heap_size_used_bytes'

metrics/heapSpacesSizeAndUsed.js

@@ -1,3 +1,4 @@
+'use strict'
 const v8 = require('v8')
 const METRICS = ['total', 'used', 'available']
 const NODEJS_HEAP_SIZE = {}

metrics/helpers/processMetricsHelpers.js

@@ -1,3 +1,4 @@
+'use strict'
 function createAggregatorByObjectName () {
   const all = new Map()
   return function aggregateByObjectName (metric, labels, list) {

metrics/helpers/safeMemoryUsage.js

@@ -1,3 +1,4 @@
+'use strict'
 // process.memoryUsage() can throw on some platforms, see https://github.com/siimon/prom-client/issues/67
 module.exports = function safeMemoryUsage () {
   try { return process.memoryUsage() } catch {}

metrics/osMemoryHeap.js

@@ -1,3 +1,4 @@
+'use strict'
 const linuxVariant = require('./osMemoryHeapLinux')
 const safeMemoryUsage = require('./helpers/safeMemoryUsage')
 const PROCESS_RESIDENT_MEMORY = 'process_resident_memory_bytes'

metrics/processCpuTotal.js

@@ -1,3 +1,4 @@
+'use strict'
 const PROCESS_CPU_USER_SECONDS = 'process_cpu_user_seconds_total'
 const PROCESS_CPU_SYSTEM_SECONDS = 'process_cpu_system_seconds_total'
 const PROCESS_CPU_SECONDS = 'process_cpu_seconds_total'

metrics/processHandles.js

@@ -1,3 +1,4 @@
+'use strict'
 const {createAggregatorByObjectName} = require('./helpers/processMetricsHelpers')
 
 const NODEJS_ACTIVE_HANDLES = 'nodejs_active_handles'

metrics/processMaxFileDescriptors.js

@@ -1,3 +1,4 @@
+'use strict'
 const fs = require('fs')
 const PROCESS_MAX_FDS = 'process_max_fds'
 let maxFds

metrics/processOpenFileDescriptors.js

@@ -1,3 +1,4 @@
+'use strict'
 const fs = require('fs')
 const process = require('process')
 const PROCESS_OPEN_FDS = 'process_open_fds'

metrics/processRequests.js

@@ -1,3 +1,4 @@
+'use strict'
 const {createAggregatorByObjectName} = require('./helpers/processMetricsHelpers')
 
 const NODEJS_ACTIVE_REQUESTS = 'nodejs_active_requests'

metrics/processStartTime.js

@@ -1,3 +1,4 @@
+'use strict'
 const startInSeconds = Math.round((Date.now() / 1000) - process.uptime())
 const PROCESS_START_TIME = 'process_start_time_seconds'
 

metrics/version.js

@@ -1,3 +1,4 @@
+'use strict'
 const NODE_VERSION_INFO = 'nodejs_version_info'
 
 module.exports = (meter, {prefix, labels}) => {