Running raw javascript (from plain text)

Question

I'm trying to execute JavaScript from plain text (from being entered by a client). I also need a way to see if the executed code works or not (if it does, then it does, otherwise, it needs to spit out a non-variable error message).

Thanks if you can! The stuff that will be executed would be short strings such as:

echo("a","b")

score 8 · Accepted Answer · answered May 13 '11 at 17:07

8

You can use eval and wrap around try-catch.

try
  {
    eval(code);
  }
catch(err)
  {
  //Handle errors here
  }

answered May 13 '11 at 17:07

Amir Raminfar

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For better security, check out some JavaScript sandboxing techniques: http://stackoverflow.com/questions/195149/is-it-possible-to-sandbox-javascript-running-in-the-browser – kizzx2 May 13 '11 at 17:45

score 5 · Answer 2 · answered May 13 '11 at 17:07

5

Are you saying you just need a try/catch statement?

https://developer.mozilla.org/en/JavaScript/Reference/Statements/try...catch

answered May 13 '11 at 17:07

RwwL

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Running raw javascript (from plain text)

2 Answers2