An API dumps its output as string in the HTML body. Not really much use, not really easy to inspect it. The solutions? Parse the body with JSON.parse an inspect it in the console.

JSON.parse(document.body.textContent)

[{"id":115,"date":"2020-11-09T02:57:48","date_gmt":"2020-11-09T02:57:48","guid":{"rendered":"http:\/\/127.0.0.1\/aaa\/?
post_type=jobs&p=115"},"modified":"2020-11-09T05:22:55","modified_gmt":"2020-11-09T05:22:55","slug":"another-test-
job","status":"publish","type":"jobs","link":"http:\/\/127.0.0.1\/aaa\/jobs\/another-test-job\/","title":{"rendered":"Another Test 
Job"},"parent":0,"menu_order":0,"template":"","_links":{"self":[{"href":"http:\/\/127.0.0.1\/aaa\/wp-
json\/wp\/v2\/jobs\/115"}],"collection":[{"href":"http:\/\/127.0.0.1\/aaa\/wp-json\/wp\/v2\/jobs"}],"about":
[{"href":"http:\/\/127.0.0.1\/aaa\/wp-json\/wp\/v2\/types\/jobs"}],"wp:attachment":[{"href":"http:\/\/127.0.0.1\/aaa\/wp-
json\/wp\/v2\/media?parent=115"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}},
{"id":96,"date":"2020-11-09T02:48:51","date_gmt":"2020-11-09T02:48:51","guid":{"rendered":"http:\/\/127.0.0.1\/aaa\/?
post_type=jobs&p=96"},"modified":"2020-11-09T05:23:30","modified_gmt":"2020-11-09T05:23:30","slug":"test-
job","status":"publish","type":"jobs","link":"http:\/\/127.0.0.1\/aaa\/jobs\/test-job\/","title":{"rendered":"Test 
Job"},"parent":0,"menu_order":0,"template":"","_links":{"self":[{"href":"http:\/\/127.0.0.1\/aaa\/wp-
json\/wp\/v2\/jobs\/96"}],"collection":[{"href":"http:\/\/127.0.0.1\/aaa\/wp-json\/wp\/v2\/jobs"}],"about":
[{"href":"http:\/\/127.0.0.1\/aaa\/wp-json\/wp\/v2\/types\/jobs"}],"wp:attachment":[{"href":"http:\/\/127.0.0.1\/aaa\/wp-
json\/wp\/v2\/media?parent=96"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}]

Quick python script to combine several JSON files into one. File names are dict keys in the JSON output.

import os
import json

entries = os.listdir(os.getcwd())

animationFiles = [
  'aaa',
  'bbb',
  'ccc'
]

output = {}

for name in animationFiles:
  with open(name + '.json') as f:
    output[name] = json.loads(f.read())

outputFile = open('output.json', 'w')
outputFile.write( json.dumps(output) )

print('Done')

Moving PHP Associative Array (Dictionaries, whatever..) over for use in Javascript. In JS Associative Array are actually objects, so we might as well make it into one.

echo "var data =" . json_encode($somatic, JSON_FORCE_OBJECT) . ";