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JS.CallFunction

Calls a global function given the name.

Component Version macOS Windows Linux Server iOS SDK
JavaScript 10.0 ✅ Yes ✅ Yes ✅ Yes ✅ Yes ✅ Yes
MBS( "JS.CallFunction"; JSRef; Name; Parameters )   More

Parameters

Parameter Description Example
JSRef The JavaScript reference number. $js
Name The name of the function. "test"
Parameters JSON to pass as parameter.

Result

Returns JSON or error.

Description

Calls a global function given the name.
Parameters are passed to the function. Please pass as many parameters in FileMaker as needed.
If the function needs more parameter, undefined values are used to fill up.
If the function needs less parameters, additional ones are dropped.
Returns the result of the function converted to a JSON value.

Examples

Define a function and call it:

Set Variable [ $js ; Value: MBS( "JS.New" ) ]
Set Variable [ $r ; Value: MBS( "JS.AddFunction"; $js; "adder"; "function (x,y) { return x+y; }" ) ]
Show Custom Dialog [ "Result" ; MBS( "JS.CallFunction"; $JS; "adder"; 3; 4 ) ]
Set Variable [ $r ; Value: MBS( "JS.Release"; $JS ) ]

Concat strings:

Set Variable [ $js ; Value: MBS( "JS.New" ) ]
Set Variable [ $r ; Value: MBS( "JS.AddFunction"; $js; "Concat"; "function (x,y) { return x+\" \"+y; }" ) ]
Show Custom Dialog [ "Result" ; MBS( "JS.CallFunction"; $JS; "Concat"; "\"Hello\""; "\"World\"" ) ]
Set Variable [ $r ; Value: MBS( "JS.Release"; $JS ) ]

Call a function:

If [ Length($$js) > 0 ]
    Set Variable [ $p ; Value: MBS( "JSON.CreateString"; test::Input) ]
    Set Field [ test::Output ; MBS( "JS.CallFunction"; $$js; "crc32"; $p ) ]
End If

See also

Example Databases

Blog Entries

Created 7th December 2019, last changed 29th October 2020


JS.AddFunction - JS.Evaluate

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