How to execute JavaScript code

[Ruri]

A lot of people mistake the ExecuteJS block for a builtin js interpreter.
That block, being on the bottom part of the Add Block window, belongs to the set of blocks that control a Selenium-driven browser.

If you instead wish to purely execute javascript using the builtin interpreter Jint you can do it like this:

BEGIN SCRIPT JavaScript
var a = 1+2;
var b = 'hello';
END SCRIPT -> VARS "a,b"

• All the SINGLE and LIST variables you declared inside the OpenBullet scope will be automatically declared and initialized inside the JavaScript scope.
  NOTE: only the variables with legal names according to the js standard are declared (variables must not start with a number, must not contain spaces etc.)

• The variables you extract using END SCRIPT -> VARS "a,b" will be initialized and declared in the OpenBullet scope, so you can have a full 2-way communication vector between OpenBullet and Jint.

If you want to read more about this you can open the LoliScript documentation

and select Flow Control -> Begin (end) Script

Bonus: You can also use another scripting language, IronPython, which allows you to work with .NET assemblies using a pythonic syntax.

[Shurijo]

BEGIN SCRIPT JavaScript
function getAlert() {
  // get all scripts
  var elem = document.scripts;
  // loop and check
  for (var i = 0, len = elem.length; i < len; i++) {
    var txt = elem[i].textContent.match(/alert\(['"]([^'"]+)['"]\)/);
    if (txt) { return txt[1]; } // if matched, return the alert text and stop
  }
}
var alert = getAlert();
END SCRIPT -> VARS "alert"

Will this work in order to get the alerts text? And how can I use the variable?

[Ruri]

Hey, in order to talk to the browser when using selenium you have to use the EXECUTEJS block.

[MrOmid]

Hey, how can i pass variable to JavaScript code in LoliScript?

[meinname]

if you have a variable <VARNAME> in Openbullet it is available as VARNAME in the Scriptblock