function

Run JavaScript in an action.

Function Action Object

KeyDescription

action

'function'

function

string javascript to be run. This JS is converted into a function and executed

Note: The function key can also be used in any other action that originates from the client. This means actions generated in a hook call do not get the function run when arriving at the server.

Javascript is placed on a single JSON value line, you must separate commands with a semicolon. Proper JSON escaping will always need to be applied.

Uses:

Functions are great for injecting small logic into any work flow.

  • build a custom string and edit the url value for a path action

Contexts function code executes with slightly different context to other Java Script in BetterForms.

To GetReference ThisDescription

window

window

The Browser JS window object, good for environmental control

formSchema

formSchema

Containing other sub objects like model etc

model

model

This is the uppermost model object regardless of sub objects like accordions etc.

app

app

This will access the global app data model

action object

action

The whole action object that contains this function. eg: action.options.path Some BetterForms Elements will merge additional options into theoptions key.

as of ver 0.7.302

Site app

app (site app data model)

**Example**
// This will change the nameFirst value to Jerome
[
  {
    "action": "function",
    "function": "debugger; formSchema.model.nameFirst = 'Jerome' "
    "options": {
      // ... additional params etc you may want.
    }
  }
]

Code Style

Function results returned with a return statement are ignored.

Contexts function code executes with the context of the currently active form, if you have a modal displayed, then code runs in that modal's context.

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