Defining and reuse a "classic" JS function

[cflurin]

Have a look here:

Use function multiple times

One approach would be to use the global.set() with the memory module. store your function in a global variable: global.set('sum', function(a, b) { return a + b; }, 'memoryOnly'); use your function: msg.payload = global.get('sum', 'memoryOnly')(2, 3); return msg; Note: you need this setting in the settings.js: contextStorage: { default: { module:"localfilesystem" }, memoryOnly: { module: "memory" } }, Flow: [{"id":"4ac…