test1.js

const obj = {
  PR: [
    "geolocation api",
    "payment request api",
    "cooperative scheduling of background tasks"
  ],
  REC: [
    "web audio api",
    "web storage (second edition)",
    "server-sent events",
    "html5 web messaging",
    "webrtc 1.0: real-time communication between browsers",
    "json-ld 1.0 processing algorithms and api",
    "progress events",
    "web notifications",
    "webassembly javascript interface",
    "high resolution time",
    "high resolution time level 2",
    "pointer events",
    "pointer events",
    "user timing",
    "user timing level 2",
    "widget interface",
    "webdriver",
    "html media capture",
    "indexed database api 2.0",
    "encrypted media extensions",
    "web cryptography api",
    "webidl level 1",
    "media source extensions™",
    "geolocation api specification 2nd edition",
    "pointer lock",
    "vibration api (second edition)",
    "indexed database api",
    "metadata api for media resources 1.0",
    "performance timeline",
    "page visibility (second edition)",
    "touch events",
    "navigation timing"
  ]
}

const mdn = {
Background Fetch API (en- US)
Background Tasks
Barcode Detection API(en - US)
Battery API
Beacon
Bluetooth API(en - US)
Broadcast Channel API
C
CSS Counter Styles(en - US)
CSS Font Loading API
CSS Painting API(en - US)
CSS Typed Object Model API(en - US)
CSSOM
Canvas API
Channel Messaging API
Clipboard API
Console API
Contact Picker API(en - US)
Content Index API(en - US)
Credential Management API
D
DOM
E
Encoding API(en - US)
Encrypted Media Extensions(en - US)
EyeDropper API(en - US)
F
Fetch API
File System Access API(en - US)
File and Directory Entries API
Fullscreen API
G
Gamepad API
Geolocation API
H
HTML DOM
HTML Drag and Drop API
HTML Sanitizer API(en - US)
High Resolution Time
History API
I
Image Capture API(en - US)
IndexedDB
Intersection Observer API
L
Layout Instability API(en - US)
Long Tasks API
M
Media Capabilities API(en - US)
Media Capture and Streams
Media Session API(en - US)
Media Source Extensions
MediaStream Recording
N
Navigation Timing
Network Information API
P
Page Visibility API
Payment Request API
Performance API
Performance Timeline API
Periodic Background Sync(en - US)
Permissions API
Picture -in -Picture API(en - US)
Pointer Events
Pointer Lock API
Presentation API(en - US)
Proximity Events(en - US)
Push API
R
Resize Observer API
Resource Timing API
S
Screen Capture API
Screen Orientation API(en - US)
Screen Wake Lock API(en - US)
Selection API(en - US)
Sensor API
Server Sent Events
Service Workers API
Storage
Storage Access API(en - US)
Streams
T
Touch Events
U
URL API
URL Pattern API(en - US)
V
Vibration API
Visual Viewport(en - US)
W
Web Animations
Web Audio API
Web Authentication API
Web Crypto API
Web MIDI API(en - US)
Web Notifications
Web Share API(en - US)
Web Speech API
Web Storage API
Web Workers API
WebCodecs API(en - US)
WebGL
WebHID API(en - US)
WebRTC
WebVR API
WebVTT
WebXR Device API
Websockets API
Window Controls Overlay API(en - US)
}