Show HN: Turned Facebook Messenger into a JavaScript REPL

#1

Post by peralmq » Thu, Apr 21, 2016, 1:54 PM UTC

Show HN: Turned Facebook Messenger into a JavaScript REPL
github.com

Re: Show HN: Turned Facebook Messenger into a JavaScript REPL

#2

Post by tomsmeding » Thu, Apr 21, 2016, 2:30 PM UTC

Happy to see that it uses the safe-eval library, which appears to fix code injection issues. Haven't checked that well though.

Re: Show HN: Turned Facebook Messenger into a JavaScript REPL

#3

Post by _RPM » Thu, Apr 21, 2016, 2:41 PM UTC

tomsmeding wrote: post #2

Happy to see that it uses the safe-eval library, which appears to fix code injection issues. Haven't checked that well though.

"safe eval". What does that even mean?

Re: Show HN: Turned Facebook Messenger into a JavaScript REPL

#4

Post by emirozer » Thu, Apr 21, 2016, 2:41 PM UTC

Cool idea! But man, Gary Bernhardt's WAT talk, even though i saw it at least 10 times, still cracks me up...

Re: Show HN: Turned Facebook Messenger into a JavaScript REPL

#5

Post by aeharding » Thu, Apr 21, 2016, 2:43 PM UTC

_RPM wrote: post #3

tomsmeding wrote: post #2

Happy to see that it uses the safe-eval library, which appears to fix code injection issues. Haven't checked that well though.

"safe eval". What does that even mean?

"safe-eval lets you execute JavaScript code without having to use the much discouraged and feared upon eval(). safe-eval has access to all the standard JavaScript API of the underlying engine. It is implemented using node's vm module." [1]

[1] https://www.npmjs.com/package/safe-eval

Re: Show HN: Turned Facebook Messenger into a JavaScript REPL

#6

Post by untothebreach » Thu, Apr 21, 2016, 2:52 PM UTC

emirozer wrote: post #4

Cool idea! But man, Gary Bernhardt's WAT talk, even though i saw it at least 10 times, still cracks me up...

seriously. by the time he gets to "watman," uncontrolled, screaming laughter, every time.

Re: Show HN: Turned Facebook Messenger into a JavaScript REPL

#7

Post by iraldir » Thu, Apr 21, 2016, 2:54 PM UTC

["But why?" gif]

Re: Show HN: Turned Facebook Messenger into a JavaScript REPL

#8

Post by jeremiep » Thu, Apr 21, 2016, 3:09 PM UTC

emirozer wrote: post #4

Cool idea! But man, Gary Bernhardt's WAT talk, even though i saw it at least 10 times, still cracks me up...

His "Useing You're Type's Good" talk is also wonderful, also made me laugh to tears!

[1]: https://www.destroyallsoftware.com/talks/useing-youre-types-...

Re: Show HN: Turned Facebook Messenger into a JavaScript REPL

#9

Post by dckydwjh » Thu, Apr 21, 2016, 3:16 PM UTC

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Re: Show HN: Turned Facebook Messenger into a JavaScript REPL

#10

Post by amelius » Thu, Apr 21, 2016, 3:17 PM UTC

Or you could just open the developer console ...