In UglifyJS2 they use Object.prototype.hasOwnProperty.call(obj, prop) to
determine if the object has that property defined, others like LessCss use
obj.hasOwnProperty(prop) so I was previously able to avoid implementing
JSObject and just add a hasOwnProperty method onto my POJO... but in
UglifyJS2
@Sundararajan,
I was previously using .getSlot(index) when extracting items from a
ScriptObjectMirror when that mirror was an array until I ran into
a undefined element and that is not equal to null as I had for my
condition... so I swapped .getSlot(i) with .get(Integer.toString(i))
Are
@Sundararajan
When calling the following code, I expected the call to myJSObject inside
testJSOCall to pass the current
scope as a ScriptObjectMirror to JSObjectImpl's call method as the thiz
argument. In this case without
modifying the call to myJSObject() should 'this' automatically be passed
@Sundararajan
When looping an array in javascript I would typically do something like
this...
for(var i = 0; i < arr.length; i++) {
console.log('Index: ' + i + ' = ' + arr[i]);
}
When looping a javascript array using the ScriptObjectMirror I would
initially think to use the same
@Sundararajan
I ran into an issue with a JSObject I implemented and some code in LessCSS.
The team is likely aware by now of a need to
return Undefined from JSObject's getMember() and possibly call(), and
getSlot()... You had previously asked a long time ago
why someone would want to do that and
When making an implementation of console.count([label]) part of the
Mozilla's developer docs
https://developer.mozilla.org/en-US/docs/Web/API/Console/count
mentions when label is omitted, the function will count the number of times
count() was called
on that line... however, if the javascript
A long time from now, in a galaxy far, far away... jdk9 came today
07/27/2017 :)
I definitely do believe it's an important feature, most web tech now a days
supports source maps and a portion of the open source project I'm working
on uses a source transformer to inject some Interrupt checks among
Thanks for pointing out the alternative, I hadn't thought of that option.
However. ;) I would still argue this as a bug or overlooked. I understand
JSObject is not intended to be a real ScriptObject with a prototype etc.
However let me ask you the difference between hasMember and hasOwnProperty?
Your right it's still not standard even in the EMCAScript 2016, it just
seems to
be the commonality. When thinking java yes line only makes sense as
typically
one who writes java does not minify the code. When thinking javascript
however
minified code is quite normal and myfile:1 might mean 5000
Thanks for making it more confusing! ;)
The reason I used array.get(iStr) instead of array.getSlot(I) just happened
to be because of my previous post about array.getSlot() returning the
undefined object. I should however have used getSlot in this example to
make it more clear that I knew I was
As java
> StackTraceElement objects do not have column number, we can't populate
> column number.
>
> -Sundar
>
> On 12/2/2016 2:06 PM, Art Fiedler wrote:
> > Your right it's still not standard even in the EMCAScript 2016, it just
> > seems to
> > be the com
Would be nice to provide SourceMaps to the ScriptEngine... I've seen here...
http://stackoverflow.com/questions/35137455/nashorn-use-of-source-maps
That nashorn doesn't support source maps, and I'm sure there is a library
out there that
is catching the exception and formatting it before it
e done without hurting performance) we'd be
> happy to accept contributions.
>
> -Sundar
>
>
> On 12/2/2016 4:34 PM, Art Fiedler wrote:
> > Without knowing all the internals of nashorn. I don't know if an internal
> > calling tree exists or how complicated it woul
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