Function output selection

[
    {
        "id": "47a23c1e32bc602e",
        "type": "tab",
        "label": "Traffic Light",
        "disabled": false,
        "info": "",
        "env": []
    },
    {
        "id": "6790a5e816e67fe8",
        "type": "junction",
        "z": "47a23c1e32bc602e",
        "x": 400,
        "y": 180,
        "wires": [
            [
                "cee5cbdc5de38a41"
            ]
        ]
    },
    {
        "id": "cee5cbdc5de38a41",
        "type": "function",
        "z": "47a23c1e32bc602e",
        "name": "",
        "func": "const DEFAULT_COLOR = \"grey\";\nlet statusColor = \"grey\"; // default color\n\nlet value = msg.payload;\n\n//Create a new messages and assume all signals is off.\nlet redMsg = {\n        payload : \"off\",\n        color : \"red\",\n        value : value\n    };\n\nlet yellowMsg = {\n    payload: \"off\",\n    color: \"yellow\",\n    value: value\n};\n\nlet greenMsg = {\n    payload: \"off\",\n    color: \"green\",\n    value: value\n};\n\n\n\n//Evaluate\nif (value >= 920) {\n    redMsg.payload.red = \"on\";\n    statusColor = \"red\";\n}\nelse if (value >= 800) {\n    yellowMsg.payload = \"on\";\n    statusColor = \"yellow\";\n}\nelse if (value >= 150) {\n    greenMsg.payload = \"on\";\n    statusColor = \"green\";\n\n}\n\n\nnode.status({ fill: statusColor,shape:\"dot\",text:\"Value: \" + value});\n\nreturn [redMsg, yellowMsg, greenMsg];",
        "outputs": 3,
        "timeout": "",
        "noerr": 0,
        "initialize": "",
        "finalize": "",
        "libs": [],
        "x": 500,
        "y": 180,
        "wires": [
            [
                "e9f6272924c0229a"
            ],
            [
                "f041dc561b4347fa"
            ],
            [
                "30dc6f071c6b04ff"
            ]
        ],
        "inputLabels": [
            "Payload = Value"
        ],
        "outputLabels": [
            "Red",
            "Yellow",
            "Green"
        ]
    },
    {
        "id": "770bb79258022b7e",
        "type": "inject",
        "z": "47a23c1e32bc602e",
        "name": "",
        "props": [
            {
                "p": "payload"
            },
            {
                "p": "topic",
                "vt": "str"
            }
        ],
        "repeat": "",
        "crontab": "",
        "once": false,
        "onceDelay": 0.1,
        "topic": "",
        "payload": "101",
        "payloadType": "num",
        "x": 150,
        "y": 120,
        "wires": [
            [
                "6790a5e816e67fe8"
            ]
        ]
    },
    {
        "id": "39c24b88990ef1c2",
        "type": "inject",
        "z": "47a23c1e32bc602e",
        "name": "",
        "props": [
            {
                "p": "payload"
            },
            {
                "p": "topic",
                "vt": "str"
            }
        ],
        "repeat": "",
        "crontab": "",
        "once": false,
        "onceDelay": 0.1,
        "topic": "",
        "payload": "450",
        "payloadType": "num",
        "x": 150,
        "y": 160,
        "wires": [
            [
                "6790a5e816e67fe8"
            ]
        ]
    },
    {
        "id": "c3efd8bbd9afc141",
        "type": "inject",
        "z": "47a23c1e32bc602e",
        "name": "",
        "props": [
            {
                "p": "payload"
            },
            {
                "p": "topic",
                "vt": "str"
            }
        ],
        "repeat": "",
        "crontab": "",
        "once": false,
        "onceDelay": 0.1,
        "topic": "",
        "payload": "850",
        "payloadType": "num",
        "x": 150,
        "y": 200,
        "wires": [
            [
                "6790a5e816e67fe8"
            ]
        ]
    },
    {
        "id": "e523ae55e8502d28",
        "type": "inject",
        "z": "47a23c1e32bc602e",
        "name": "",
        "props": [
            {
                "p": "payload"
            },
            {
                "p": "topic",
                "vt": "str"
            }
        ],
        "repeat": "",
        "crontab": "",
        "once": false,
        "onceDelay": 0.1,
        "topic": "",
        "payload": "950",
        "payloadType": "num",
        "x": 150,
        "y": 240,
        "wires": [
            [
                "6790a5e816e67fe8"
            ]
        ]
    },
    {
        "id": "e9f6272924c0229a",
        "type": "debug",
        "z": "47a23c1e32bc602e",
        "name": "dbg Red",
        "active": true,
        "tosidebar": true,
        "console": false,
        "tostatus": false,
        "complete": "true",
        "targetType": "full",
        "statusVal": "",
        "statusType": "auto",
        "x": 700,
        "y": 140,
        "wires": []
    },
    {
        "id": "f041dc561b4347fa",
        "type": "debug",
        "z": "47a23c1e32bc602e",
        "name": "dbg Yellow",
        "active": true,
        "tosidebar": true,
        "console": false,
        "tostatus": false,
        "complete": "true",
        "targetType": "full",
        "statusVal": "",
        "statusType": "auto",
        "x": 710,
        "y": 180,
        "wires": []
    },
    {
        "id": "30dc6f071c6b04ff",
        "type": "debug",
        "z": "47a23c1e32bc602e",
        "name": "dbg Green",
        "active": true,
        "tosidebar": true,
        "console": false,
        "tostatus": false,
        "complete": "true",
        "targetType": "full",
        "statusVal": "",
        "statusType": "auto",
        "x": 710,
        "y": 220,
        "wires": []
    },
    {
        "id": "2a7ac1490adc17f2",
        "type": "function",
        "z": "47a23c1e32bc602e",
        "name": "Random 0 - 1000",
        "func": "const MIN_VAL = 0;\nconst MAX_VAL = 1000;\n\nmsg.payload = Math.round(Math.random()*(MAX_VAL - MIN_VAL) + MIN_VAL);\n\nnode.status({text: \"Value: \" + msg.payload});\nreturn msg;",
        "outputs": 1,
        "timeout": 0,
        "noerr": 0,
        "initialize": "",
        "finalize": "",
        "libs": [],
        "x": 350,
        "y": 300,
        "wires": [
            [
                "6790a5e816e67fe8"
            ]
        ]
    },
    {
        "id": "4551df0b59990fe3",
        "type": "inject",
        "z": "47a23c1e32bc602e",
        "name": "Random",
        "props": [
            {
                "p": "payload"
            },
            {
                "p": "topic",
                "vt": "str"
            }
        ],
        "repeat": "",
        "crontab": "",
        "once": false,
        "onceDelay": 0.1,
        "topic": "",
        "payload": "",
        "payloadType": "date",
        "x": 160,
        "y": 300,
        "wires": [
            [
                "2a7ac1490adc17f2"
            ]
        ]
    }
]