Task: Split up data into different items

n8n workflow JSON:
{"nodes":[{"name":"Get Data","type":"n8n-nodes-base.httpRequest","position":[500,300],"parameters":{"url":"https://jsonplaceholder.typicode.com/posts?userId=1","headerParametersUi":{"parameter":[]}},"typeVersion":1},{"name":"Split up","type":"n8n-nodes-base.function","position":[700,300],"parameters":{"functionCode":"const newItems = [];\nfor (const item of items[0].json) {\n  newItems.push({json: item});\n}\nreturn newItems;"},"typeVersion":1},{"name":"Send Requests","type":"n8n-nodes-base.httpRequest","position":[900,300],"parameters":{"url":"https://postman-echo.com/get","responseFormat":"string","queryParametersUi":{"parameter":[{"name":"title","value":"={{$node[\"Split up\"].data[\"title\"]}}"}]}},"typeVersion":1}],"connections":{"Get Data":{"main":[[{"node":"Split up","type":"main","index":0}]]},"Split up":{"main":[[{"node":"Send Requests","type":"main","index":0}]]}}}