This gave me a good head start. However, my program crashes at
function->Call statement.
Can you please tell me what values function_value, function_name and
function are supposed to take.I have also populated argv with random values
since I am not using them in my function. If that could also be a reason
for the crash, please let me know.
This is my JS code :
Local<String> source =
*String::NewFromUtf8(isolate, "'function test_function() {var match = 0;
return match+10;}'",*
* NewStringType::kNormal).ToLocalChecked();*
*Thanks,*
*Kavin*
On Friday, August 4, 2017 at 3:29:23 PM UTC-7, Jeremy Bettis wrote:
>
> What I do to call a function is to use
>
> v8::Local<v8::Value> function_value;
> context->Global()->Get(context, function_name).ToLocal(&function_value);
> v8::Local<v8::Function> function =
> v8::Local<v8::Function>::Cast(function_value);
> const int argc = arguments.size();
> std::vector<v8::Local<v8::Value>> argv(argc);
> // populate the argv somehow
> function->Call(context, context->Global(), argc, argv.data());
>
> On Fri, Aug 4, 2017 at 4:17 PM, Kavin Mani <kavin...@gmail.com
> <javascript:>> wrote:
>
>> Hi,
>>
>> I am new to V8 engine and starting to experiment things. I am wondering
>> if it is possible to execute different functions from a Javascript file at
>> different times.
>>
>> Consider the following scenario:
>>
>> I have a Javascript file with a global variable *foo *and two functions
>> *func1() *and *func2().* Something like this:
>>
>> *Test.js:*
>>
>> var foo = 0;
>>
>> function func1() {
>> foo = 100;
>> }
>>
>> function func2() {
>> return foo + 10;
>> }
>>
>> In my *cpp* file, I want to first execute *func1() *from Test.js*, *print
>> some random statements (need not be related to using *foo*) and then
>> call *func2()*. Finally, I want to print the value of *foo *in my C++
>> program. Here is what I want to do -
>>
>> *Test.cpp*
>>
>> Print some statements...
>>
>> Call func1()
>>
>> Print some more statements...
>>
>> Call func2()
>>
>> Print the value of foo
>>
>>
>> Almost all of the examples that I could find takes the Javascript program
>> as a string and executes it completely. However, I want to execute them in
>> parts at different times. Can someone please help me to find a way to do
>> this?
>>
>> Thanks,
>> Kavin
>>
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>>
>
>
>
> --
> Jeremy Bettis | Staff Software Engineer | jbe...@google.com <javascript:>
> | 303-257-2486
>
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