Task: v1 helper - Find params with affected expressions

n8n workflow:
{"id":"zlHbtHIcCZ9enKwg","meta":{"instanceId":"406f1bca875c48c0fa12bf65a32e67f001617a6df6d6fd6dd72bff9d20014812"},"name":"v1 helper - Find params with affected expressions","tags":[],"nodes":[{"id":"b3dd44ca-960f-4689-9545-30a05dc0441e","name":"When clicking \"Execute Workflow\"","type":"n8n-nodes-base.manualTrigger","position":[580,320],"parameters":{},"typeVersion":1},{"id":"96db239d-05b6-4e1d-b101-e66c2a9708f6","name":"n8n","type":"n8n-nodes-base.n8n","position":[800,320],"parameters":{"filters":{"activeWorkflows":true}},"credentials":{"n8nApi":{"id":"hcJ2iZYYgs54eCaT","name":"n8n account"}},"typeVersion":1},{"id":"b2286f6b-ba37-433c-b22a-95032bc25b6e","name":"Find params with affected expressions","type":"n8n-nodes-base.code","position":[1040,320],"parameters":{"jsCode":"const AFFECTED_EXTENSIONS = ['beginningOf', 'endOfMonth', 'minus', 'plus'];\n\nconst isExpression = (value) => typeof value === 'string' && value.startsWith('={{');\n\nconst containsAny = (str, substrings) => {\n  for (const substring of substrings) {\n    if (str.includes(substring)) return true;\n  }\n  \n  return false;\n}\n\nconst isAffected = (value) => isExpression(value) && containsAny(value, AFFECTED_EXTENSIONS);\n\nfunction findParamsByTest(target, test) {\n  const parameterNames = [];\n\n  function search(obj) {\n    if (typeof obj === 'object') {\n      for (const key in obj) {\n        const value = obj[key];\n\n        if (test(value)) {\n          parameterNames.push(key);\n        } else if (typeof value === 'object') {\n          search(value);\n        }\n      }\n    }\n  }\n\n  search(target);\n\n  return parameterNames;\n}\n\nreturn $input.all().reduce((allLocations, { json: workflow }) => {\n  const perWorkflow = workflow.nodes.reduce((allLocationsPerWorkflow, node) => {\n    const perNode = findParamsByTest(node.parameters, isAffected).map(\n      (parameterName) => {\n\t\treturn {\n\t\t\tworkflowName: workflow.name,\n\t\t\tnodeName: node.name,\n\t\t\tparameterName,\n        };\n      },\n    );\n\n    return [...allLocationsPerWorkflow, ...perNode];\n  }, []);\n\n  return [...allLocations, ...perWorkflow];\n}, []);"},"typeVersion":1},{"id":"ee189fa0-cf89-4b8d-8351-ed9598f18502","name":"Sticky Note1","type":"n8n-nodes-base.stickyNote","position":[600,92],"parameters":{"width":548.6551724137931,"height":191.08045977011497,"content":"## v1 Helper\n\nℹ️ This workflow is to be run **after upgrading to n8n v1**.\n\nThis workflow returns all locations where a node in an active workflow contains a parameter using an **expression extension affected by [v1 changes](https://github.com/n8n-io/n8n/pull/6435)**. For every location, please check that the workflow still behaves as intended."},"typeVersion":1}],"active":false,"pinData":{},"settings":{},"versionId":"da694734-30ae-46b1-8e29-877c95b670ab","connections":{"n8n":{"main":[[{"node":"Find params with affected expressions","type":"main","index":0}]]},"When clicking \"Execute Workflow\"":{"main":[[{"node":"n8n","type":"main","index":0}]]}}}