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JS.AddFunction
Adds a global function defined as a text string.
| Component | Version | macOS | Windows | Linux | Server | FileMaker iOS SDK |
| JavaScript | 10.0 | Yes | Yes | Yes | Yes | Yes |
Parameters
| Parameter | Description | Example |
|---|---|---|
| JSRef | The JavaScript reference number. | $js |
| Name | The name of the function. | "test" |
| JavaScript | The JavaScript code. | "function (x,y) { return x+y; }" |
Result
Returns OK or error.
Description
Adds a global function defined as a text string.Optional provide a file name to show in stack traces.
Function source code may contain a function name, but we use only the name parameter to register the function as global one.
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 ) ]
Initialize JavaScript environment with two functions:
If [ Length($$js) = 0 ]
Set Variable [ $$js ; Value: MBS( "JS.New" ) ]
Set Variable [ $r ; Value: MBS( "JS.AddFunction"; $$js; "makeCRCTable"; "function makeCRCTable(){
var c;
var crcTable = [];
for(var n =0; n < 256; n++){
c = n;
for(var k =0; k < 8; k++){
c = ((c&1) ? (0xEDB88320 ^ (c >>> 1)) : (c >>> 1));
}
crcTable[n] = c;
}
return crcTable;
}") ]
Set Variable [ $r ; Value: MBS( "JS.AddFunction"; $$js; "crc32"; "function crc32(str) {
var crcTable = crcTable || (crcTable = makeCRCTable());
var crc = 0 ^ (-1);
for (var i = 0; i < str.length; i++ ) {
crc = (crc >>> 8) ^ crcTable[(crc ^ str.charCodeAt(i)) & 0xFF];
}
return (crc ^ (-1)) >>> 0;
}") ]
End If
See also
Example Databases
Blog Entries
- FileMaker and JavaScript - the perfect combination
- New in the MBS FileMaker Plugin 10.0
- CRC function in FileMaker using JavaScript
- Our JavaScript engine for FileMaker
Created 7th December 2019, last changed 29th October 2020
JS.AddFileMakerSQLFunction - JS.CallFunction
Feedback: Report problem or ask question.
Links
MBS FileMaker tutorial videos
