How to use JavaScript in SAP ABAP?

You can code JavaScript directly in your ABAP code.

If you want to do some JavaScript tests in ABAP there is a good program to use : DEMO_JAVA_SCRIPT_MINI_EDITOR. When you run this program, you can code your Java in an ABAP editor, compile and execute it to test the result.

Nowe, here is a small example on how to insert JavaScript in ABAP:

*&---------------------------------------------------------------------*

*& Report ZDANY_JAVASCRIPT_TEST

*&---------------------------------------------------------------------*

REPORT ZDANY_JAVASCRIPT_TEST.

data: l_JS_PROCESSOR type ref to CL_JAVA_SCRIPT,

      l_RETURN_VALUE type STRING,

      l_SOURCE       type STRING.

* Creation of a new javaScript

l_JS_PROCESSOR = CL_JAVA_SCRIPT=>CREATE( ).

* this is the Javascript code

concatenate

   'var l_source = "Hello World,"; '

   'l_source += " I''m"; '

   'l_source += " JavaScript!"; '

   'l_source; '

    into l_SOURCE separated by CL_ABAP_CHAR_UTILITIES=>CR_LF.

* we compile the JavaScript code

l_JS_PROCESSOR->COMPILE( SCRIPT_NAME = 'DANYTEST.JS' SCRIPT = L_SOURCE ).

* Any syntax error ?

if l_JS_PROCESSOR->LAST_CONDITION_CODE <> 0.

   write: / 'Error in COMPILE', l_JS_PROCESSOR->LAST_ERROR_MESSAGE.

   exit.

else.

   write / 'JavaScript was compiled'.

endif.

* Let's go and run the script

l_JS_PROCESSOR->EXECUTE( SCRIPT_NAME = 'DANYTEST.JS' ).

* Any problem during execution ?

if l_JS_PROCESSOR->LAST_CONDITION_CODE <> 0.

   write: / 'Error in EXECUTE',l_JS_PROCESSOR->LAST_ERROR_MESSAGE.

   exit.

else.

   write / 'JavaScript was executed'.

endif.

* we read the output variable

l_RETURN_VALUE = l_JS_PROCESSOR->EVALUATE( JAVA_SCRIPT = 'l_source;' ).

write : / l_RETURN_VALUE.

You can code JavaScript directly in your ABAP code.

If you want to do some JavaScript tests in ABAP there is a good program to use : DEMO_JAVA_SCRIPT_MINI_EDITOR. When you run this program, you can code your Java in an ABAP editor, compile and execute it to test the result.

Nowe, here is a small example on how to insert JavaScript in ABAP:

*&---------------------------------------------------------------------*

*& Report ZDANY_JAVASCRIPT_TEST

*&---------------------------------------------------------------------*

REPORT ZDANY_JAVASCRIPT_TEST.

data: l_JS_PROCESSOR type ref to CL_JAVA_SCRIPT,

      l_RETURN_VALUE type STRING,

      l_SOURCE       type STRING.

* Creation of a new javaScript

l_JS_PROCESSOR = CL_JAVA_SCRIPT=>CREATE( ).

* this is the Javascript code

concatenate

   'var l_source = "Hello World,"; '

   'l_source += " I''m"; '

   'l_source += " JavaScript!"; '

   'l_source; '

    into l_SOURCE separated by CL_ABAP_CHAR_UTILITIES=>CR_LF.

* we compile the JavaScript code

l_JS_PROCESSOR->COMPILE( SCRIPT_NAME = 'DANYTEST.JS' SCRIPT = L_SOURCE ).

* Any syntax error ?

if l_JS_PROCESSOR->LAST_CONDITION_CODE <> 0.

   write: / 'Error in COMPILE', l_JS_PROCESSOR->LAST_ERROR_MESSAGE.

   exit.

else.

   write / 'JavaScript was compiled'.

endif.

* Let's go and run the script

l_JS_PROCESSOR->EXECUTE( SCRIPT_NAME = 'DANYTEST.JS' ).

* Any problem during execution ?

if l_JS_PROCESSOR->LAST_CONDITION_CODE <> 0.

   write: / 'Error in EXECUTE',l_JS_PROCESSOR->LAST_ERROR_MESSAGE.

   exit.

else.

   write / 'JavaScript was executed'.

endif.

* we read the output variable

l_RETURN_VALUE = l_JS_PROCESSOR->EVALUATE( JAVA_SCRIPT = 'l_source;' ).

write : / l_RETURN_VALUE.