{ "nodes": [ { "parameters": {}, "id": "33eede8d-2ab0-42ab-b79a-a069d8549ab0", "name": "When clicking \"Execute Workflow\"", "type": "n8n-nodes-base.manualTrigger", "typeVersion": 1, "position": [-40, 580] }, { "parameters": { "jsCode": "return[\n { value: 1 },\n { value: 2 },\n]" }, "id": "a5913b52-24dc-4f81-bb7f-f90e61dad978", "name": "Sample Data", "type": "n8n-nodes-base.code", "typeVersion": 1, "position": [200, 580] }, { "parameters": { "jsCode": "// Loop over input items and add a new field\n// called 'myNewField' to the JSON of each one\nlet sum = 0;\nfor (const item of $input.all()) {\n sum += item.json.value;\n}\n\nreturn [ {sum} ];" }, "id": "c4ad4913-5af3-42bc-a784-69182f1facdd", "name": "Run Once for All Items", "type": "n8n-nodes-base.code", "typeVersion": 1, "position": [460, 320] }, { "parameters": { "jsCode": "// Loop over input items and add a new field\n// called 'myNewField' to the JSON of each one\nlet sum = 0;\nfor (const item of items) {\n sum += item.json.value;\n}\n\nreturn [ {sum} ];" }, "id": "34cbd204-4335-4790-92cd-c3df617eee21", "name": "Run Once for All Items (Legacy Syntax)", "type": "n8n-nodes-base.code", "typeVersion": 1, "position": [460, 500] }, { "parameters": { "mode": "runOnceForEachItem", "jsCode": "// Add a new field called 'myNewField' to the\n// JSON of the item\n$input.item.json.myNewField = $input.item.json.value;\n\nreturn $input.item;" }, "id": "f67d29bf-554a-4572-8867-4456182dec24", "name": "Run Once for Each Item", "type": "n8n-nodes-base.code", "typeVersion": 1, "position": [460, 680] }, { "parameters": { "mode": "runOnceForEachItem", "jsCode": "// Add a new field called 'myNewField' to the\n// JSON of the item\nitem.json.myNewField = item.json.value;\n\nreturn item;" }, "id": "6f4bf149-e84e-4e0d-802a-7eaf7a42b18c", "name": "Run Once for Each Item (Legacy Syntax)", "type": "n8n-nodes-base.code", "typeVersion": 1, "position": [460, 860] }, { "parameters": { "mode": "runOnceForEachItem", "jsCode": "const json = $input.item.json\njson.myNewField = await (async () => json.value)();\n\nreturn $input.item;" }, "id": "3cff4a64-c3fd-47d3-a33e-3c446846138f", "name": "With Async Functions", "type": "n8n-nodes-base.code", "typeVersion": 1, "position": [ 460, 1200 ] }, { "parameters": { "mode": "runOnceForEachItem", "jsCode": "const json = $input.item.json\njson.myNewField = await new Promise((resolve) => resolve(json.value));\n\nreturn $input.item;" }, "id": "947e4e3e-2da3-40c5-97da-830c4572fc05", "name": "With Promises", "type": "n8n-nodes-base.code", "typeVersion": 1, "position": [ 460, 1380 ] } ], "pinData": { "Run Once for All Items": [ { "json": { "sum": 3 } } ], "Run Once for Each Item": [ { "json": { "value": 1, "myNewField": 1 } }, { "json": { "value": 2, "myNewField": 2 } } ], "Run Once for All Items (Legacy Syntax)": [ { "json": { "sum": 3 } } ], "Run Once for Each Item (Legacy Syntax)": [ { "json": { "value": 1, "myNewField": 1 } }, { "json": { "value": 2, "myNewField": 2 } } ], "With Async Functions": [ { "json": { "value": 1, "myNewField": 1 } }, { "json": { "value": 2, "myNewField": 2 } } ], "With Promises": [ { "json": { "value": 1, "myNewField": 1 } }, { "json": { "value": 2, "myNewField": 2 } } ] }, "connections": { "When clicking \"Execute Workflow\"": { "main": [ [ { "node": "Sample Data", "type": "main", "index": 0 } ] ] }, "Sample Data": { "main": [ [ { "node": "Run Once for All Items", "type": "main", "index": 0 }, { "node": "Run Once for Each Item", "type": "main", "index": 0 }, { "node": "Run Once for All Items (Legacy Syntax)", "type": "main", "index": 0 }, { "node": "Run Once for Each Item (Legacy Syntax)", "type": "main", "index": 0 }, { "node": "With Async Functions", "type": "main", "index": 0 }, { "node": "With Promises", "type": "main", "index": 0 } ] ] } } }