eval5 | A JavaScript interpreter written in TypeScript - Support ES5 | Interpreter library
kandi X-RAY | eval5 Summary
kandi X-RAY | eval5 Summary
基于 TypeScript 编写的 JavaScript 解释器,支持完整 ES5 语法.
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QUESTION
I am trying to implement a Java interface that is required by a legacy runtime I am using and instantiate an instance of this implementation to pass it to the runtime. But when I run lein uberjar
I see an exception, that the class cannot be found. Both namespaces are defined in the same leiningen project, so I would have expected, that they see each other as well as the classes generated by them.
ANSWER
Answered 2018-Nov-07 at 08:17You class is defined in namespace man.gateway
, but it's fully qualified class name is man.ManGate
. Changing FQCN to man.gateway.ManGate
in both core.clj
and gateway.clj
should solve the problem.
QUESTION
(defn build-vector [n]
(loop [acc []
n 0]
(if (>= (last acc) n)
acc
(recur (conj acc n) (inc n)))))
(defn build-vector-2 [n]
(loop [acc []
m 0]
(if (>= m n)
acc
(recur (conj acc m) (inc m)))))
...ANSWER
Answered 2018-May-24 at 16:22On the first iteration acc
is the empty vector, so (last acc)
returns nil. (>= nil 0)
throws a NullPointerException
.
QUESTION
The following code creates a new table in the db. I would like it to catch any sql errors and continue running should the table already exists. However, when I execute the code, if the table already exists, I get an exception as expected but the code exits during compilation. Is the try catch being ignored?
Code:
...ANSWER
Answered 2017-Nov-07 at 11:38I think the problem is that the catch
is trying to catch exceptions of type ExceptionInfo
. Try changing that to just Exception
or Throwable
and see if it catches the exception.
QUESTION
I'm trying to run the following code.
Below are the steps I took:
...ANSWER
Answered 2017-Jun-15 at 06:33You forgot to define -main
function - this one is automatically generated by leiningen in core namespace.
You also didn't specify how you try to run the application, but I assume you just invoke lein run
.
As long as you add -main
function to your namespace it should work.
I also recommend wrapping the latinsq
function invocations into another function to avoid evaluating them when namespace is loaded.
Btw. this is the full output that I got (using unmodified -main
generated by leiningen:
lein run
"Elapsed time: 0.183692 msecs"
"Elapsed time: 0.055872 msecs"
"Elapsed time: 68742.261628 msecs"
"Elapsed time: 1.361745 msecs"
"Elapsed time: 0.045366 msecs"
Hello, World!
QUESTION
I have the following code
...ANSWER
Answered 2017-Apr-27 at 11:38The problem is that you wrapped the body of let in extra parens, so effectively nil
, the result of println
is invoked as a function. Remove the parens and it works like expected:
QUESTION
I'm trying to open the Clojure repl using leiningen. When I open it from the console in my project directory I get an error, but using lein run
everything works correctly. Also if I start lein repl
in a non project directory it works correctly.
What is causing this???
...ANSWER
Answered 2017-Mar-25 at 17:252 issues:
You need a
gen-class
directive in thens
macro. This should have caused yourlein run
to fail (it failed for me without it). Note: In the comments, Arthur said it isn't necessary in this case. I consider him far more authoritative, so it looks like it's not necessary. The error I got must have been due to my IDE. I assumed it was an "entry point" error because I couldn't remember what the message was exactly.(Your main problem) In
project.clj
, you're using a string to indicate the main. Clojure expects that it will be a symbol.
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