random action selection script

This code is for shuffling numbers that I have found:

/**
 * Shuffles array in place.
 * @param {Array} a items The array containing the items.
 * @return {Array} a The shuffled array
 */
function shuffle(a) {
   var j, x, i;
   for (i = a.length; i; i -= 1) {
  j = Math.floor(Math.random() * i);
  x = a[i - 1];
  a[i - 1] = a[j];
  a[j] = x;
   }
}

then use:

var myArray = ['1','2','3','4','5','6','7','8','9'];
shuffle(myArray);

I have found these examples here:

https://stackoverflow.com/questions/6274339/how-can-i-shuffle-an-array-in-javascript#6274381

But instead of numbers, I want to make functions being shuffled and executed one random function on each button press without repeating that same function on next button press.

I have implemented the codes, but it doesn't work. Where do I get wrong?

P.S. rnd_act_select() is called by a button press.

function rnd_act_select() {
try {
    if (documents.length == 0) {
        alert('Please open a document.')
        return;
    }
// random selection
function shuffle(array) {
  var currentIndex = array.length, temporaryValue, randomIndex;

  // While there remain elements to shuffle...
  while (0 !== currentIndex) {

    // Pick a remaining element...
    randomIndex = Math.floor(Math.random() * currentIndex);
    currentIndex -= 1;

    // And swap it with the current element.
    temporaryValue = array[currentIndex];
    array[currentIndex] = array[randomIndex];
    array[randomIndex] = temporaryValue;
  }

  return array;
}
var arr = [func_one,func_two,func_three,func_four];
var shuf = shuffle(arr);

switch(shuf) {
    case 0: func_one(); break;
    case 1: func_two(); break;
    case 2: func_three(); break;
    case 3: func_four(); break;
    default : return;
}
// random selection end
    } catch(e) {
        alert(e + ":" + e.line);
    }
};

Thank you

Thank you SuperMerlin, obviously I did not ask the question the right way. I will try to explain it with more details. For example, I have included three functions (Cut, Copy and Paste) that want to be randomized on each pressing of the button in the panel that I will link it later. I think that this is much clearer of what I need to do.

cTID = function(s) { return app.charIDToTypeID(s); };
sTID = function(s) { return app.stringIDToTypeID(s); };

//
//==================== Cut (selection) ==============
//
function Cut_selection() {
    try {
    if (documents.length == 0) {
        alert('Please open a document.')
        return;
    }
  // Cut
  function step1(enabled, withDialog) {
    if (enabled != undefined && !enabled)
      return;
    var dialogMode = (withDialog ? DialogModes.ALL : DialogModes.NO);
    executeAction(cTID('cut '), undefined, dialogMode);
  };

  step1();      // Cut
  } catch(e) {
    alert(e + ":" + e.line);
};
//
//==================== Copy (selection) ==============
//
function Copy_selection() {
    try {
    if (documents.length == 0) {
        alert('Please open a document.')
        return;
    }
  // Copy
  function step1(enabled, withDialog) {
    if (enabled != undefined && !enabled)
      return;
    var dialogMode = (withDialog ? DialogModes.ALL : DialogModes.NO);
    executeAction(cTID('copy'), undefined, dialogMode);
  };

  step1();      // Copy
  } catch(e) {
    alert(e + ":" + e.line);
};
//
//==================== Paste ==============
//
function Paste() {
    try {
    if (documents.length == 0) {
        alert('Please open a document.')
        return;
    }
  // Paste
  function step1(enabled, withDialog) {
    if (enabled != undefined && !enabled)
      return;
    var dialogMode = (withDialog ? DialogModes.ALL : DialogModes.NO);
    executeAction(cTID('past'), undefined, dialogMode);
  };

  step1();      // Paste
  } catch(e) {
    alert(e + ":" + e.line);
};
//

I found something on StackOverflow like this:

function randomact() {
   var func = randomFrom(['Cut_selection', 'Copy_selection', 'Paste']);
  window[func]();
}

or:

function randomact() {
   var func = randomFrom([Cut_selection, 'Copy_selection, Paste]);
   (func)();
}

`The only problem is I don't know how to make things in order for everything to function as it should.

Thank you!

Thank you xbytor2, you are great!!!

This is becoming much more interesting as today I have found a tool from xtools to convert an action to javascript and also using the CC extension builder for brackets to create a panel. I am good at HTML and CSS and have created the panel, I even found a way how to implement the converted actions (to javascript) in the default script file called hostscript.jsx (it can be any name for the extendscripts implementation). Can someone (SuperMerlin, xbytor2 or anyone else) help me with script randomizing the implemented functions (converted from the actions)?

Thank you.

Wow! So many answers by great people here! I will study the complete code of SuperMerlin how it is made.

Thanks a bunch, especially to SuperMerlin!

In case the number/names of the Actions changes in this thread

Re: Photoshop list actions with script

xbytor provided code to get a list of ActionsSets’ and the contains Actions’ names.

var actionSet = "myActionSet"; // name of your ActionSet
var actions = ["Action 01","Action 02","Action 03","Action 04","Action 05","Action 06","Action 07","Action 08"]; // names of your actions
var randomAction = actions[Math.floor(Math.random() * actions.length)];
app.doAction(actions[randomAction], actionSet ); 

Please, if someone could answer my question.