javascript - Binding values to variables mentioned in a script -

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i'm creating gwt version of java library has support javax.script.scriptengine evaluate functions dynamically via javascript, e.g.,

o => o % 2 == 0

where @ runtime, value of "o" defined via javax.script.bindings (the o => part stripped of course).

the problem is, how can same effect within gwt? use native function

native object nativeeval(string script) /*-{     return $wnd.eval(script); }-*/  nativeeval("o % 2 == 0");

but how can bind value identifier "o"?

new function("o", "return (" + expressionthatuseso + ")")(o)

if expressionthatuseso "o % 2" equivalent global function called

(function (o) { return o % 2; })(o)

for reference, https://developer.mozilla.org/en/javascript/reference/global_objects/function :

new function ([arg1[, arg2[, ... argn]],] functionbody)

parameters

arg1, arg2, ... argn

names used function formal argument names. each must string corresponds valid javascript identifier or list of such strings separated comma; example "x", "thevalue", or "a,b".

functionbody

a string containing javascript statements comprising function definition.


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