 /******************* 
 * Testoutput Test *
 *******************/

import {
  PsychoJS
} from './lib/core-2021.1.4.js';
import * as core from './lib/core-2021.1.4.js';
import {
  TrialHandler
} from './lib/data-2021.1.4.js';
import {
  Scheduler
} from './lib/util-2021.1.4.js';
import * as visual from './lib/visual-2021.1.4.js';
import * as sound from './lib/sound-2021.1.4.js';
import * as util from './lib/util-2021.1.4.js';
//some handy aliases as in the psychopy scripts;
const {
  abs,
  sin,
  cos,
  PI: pi,
  sqrt
} = Math;
const {
  round
} = util;

// init psychoJS:
const psychoJS = new PsychoJS({
  debug: true
});

// open window:
psychoJS.openWindow({
  fullscr: true,
  color: new util.Color([0, 0, 0]),
  units: 'height',
  waitBlanking: true
});

// store info about the experiment session:
let expName = 'TestOutput'; // from the Builder filename that created this script
let expInfo = {
  'participant': '',
  'session': '001'
};

// Start code blocks for 'Before Experiment'
// schedule the experiment:
psychoJS.schedule(psychoJS.gui.DlgFromDict({
  dictionary: expInfo,
  title: expName
}));

const flowScheduler = new Scheduler(psychoJS);
const dialogCancelScheduler = new Scheduler(psychoJS);
psychoJS.scheduleCondition(function() {
  return (psychoJS.gui.dialogComponent.button === 'OK');
}, flowScheduler, dialogCancelScheduler);

// flowScheduler gets run if the participants presses OK
flowScheduler.add(updateInfo); // add timeStamp
flowScheduler.add(experimentInit);
flowScheduler.add(trialRoutineBegin());
flowScheduler.add(trialRoutineEachFrame());
flowScheduler.add(trialRoutineEnd());
flowScheduler.add(quitPsychoJS, '', true);

// quit if user presses Cancel in dialog box:
dialogCancelScheduler.add(quitPsychoJS, '', false);

psychoJS.start({
  expName: expName,
  expInfo: expInfo,
  resources: []
});

psychoJS.experimentLogger.setLevel(core.Logger.ServerLevel.EXP);


var frameDur;

function updateInfo() {
  expInfo['date'] = util.MonotonicClock.getDateStr(); // add a simple timestamp
  expInfo['expName'] = expName;
  expInfo['psychopyVersion'] = '2021.1.4';
  expInfo['OS'] = window.navigator.platform;

  // store frame rate of monitor if we can measure it successfully
  expInfo['frameRate'] = psychoJS.window.getActualFrameRate();
  if (typeof expInfo['frameRate'] !== 'undefined')
    frameDur = 1.0 / Math.round(expInfo['frameRate']);
  else
    frameDur = 1.0 / 60.0; // couldn't get a reliable measure so guess

  // add info from the URL:
  util.addInfoFromUrl(expInfo);

  return Scheduler.Event.NEXT;
}


var trialClock;
var text;
var key_resp;
var globalClock;
var routineTimer;

function experimentInit() {
  // Initialize components for Routine "trial"
  trialClock = new util.Clock();
  text = new visual.TextStim({
    win: psychoJS.window,
    name: 'text',
    text: 'Press space to continue',
    font: 'Open Sans',
    units: undefined,
    pos: [0, 0],
    height: 0.1,
    wrapWidth: undefined,
    ori: 0.0,
    color: new util.Color('white'),
    opacity: undefined,
    depth: 0.0
  });

  key_resp = new core.Keyboard({
    psychoJS: psychoJS,
    clock: new util.Clock(),
    waitForStart: true
  });

  // Create some handy timers
  globalClock = new util.Clock(); // to track the time since experiment started
  routineTimer = new util.CountdownTimer(); // to track time remaining of each (non-slip) routine

  return Scheduler.Event.NEXT;
}


var t;
var frameN;
var continueRoutine;
var _key_resp_allKeys;
var trialComponents;

function trialRoutineBegin(snapshot) {
  return function() {
    //------Prepare to start Routine 'trial'-------
    t = 0;
    trialClock.reset(); // clock
    frameN = -1;
    continueRoutine = true; // until we're told otherwise
    // update component parameters for each repeat
    key_resp.keys = undefined;
    key_resp.rt = undefined;
    _key_resp_allKeys = [];
    // keep track of which components have finished
    trialComponents = [];
    trialComponents.push(text);
    trialComponents.push(key_resp);

    for (const thisComponent of trialComponents)
      if ('status' in thisComponent)
        thisComponent.status = PsychoJS.Status.NOT_STARTED;
    return Scheduler.Event.NEXT;
  }
}


function trialRoutineEachFrame(snapshot) {
  return function() {
    //------Loop for each frame of Routine 'trial'-------
    // get current time
    t = trialClock.getTime();
    frameN = frameN + 1; // number of completed frames (so 0 is the first frame)
    // update/draw components on each frame

    // *text* updates
    if (t >= 0.0 && text.status === PsychoJS.Status.NOT_STARTED) {
      // keep track of start time/frame for later
      text.tStart = t; // (not accounting for frame time here)
      text.frameNStart = frameN; // exact frame index

      text.setAutoDraw(true);
    }


    // *key_resp* updates
    if (t >= 0.0 && key_resp.status === PsychoJS.Status.NOT_STARTED) {
      // keep track of start time/frame for later
      key_resp.tStart = t; // (not accounting for frame time here)
      key_resp.frameNStart = frameN; // exact frame index

      // keyboard checking is just starting
      psychoJS.window.callOnFlip(function() {
        key_resp.clock.reset();
      }); // t=0 on next screen flip
      psychoJS.window.callOnFlip(function() {
        key_resp.start();
      }); // start on screen flip
      psychoJS.window.callOnFlip(function() {
        key_resp.clearEvents();
      });
    }

    if (key_resp.status === PsychoJS.Status.STARTED) {
      let theseKeys = key_resp.getKeys({
        keyList: ['space'],
        waitRelease: false
      });
      _key_resp_allKeys = _key_resp_allKeys.concat(theseKeys);
      if (_key_resp_allKeys.length > 0) {
        key_resp.keys = _key_resp_allKeys[_key_resp_allKeys.length - 1].name; // just the last key pressed
        key_resp.rt = _key_resp_allKeys[_key_resp_allKeys.length - 1].rt;
        // a response ends the routine
        continueRoutine = false;
      }
    }

    // check for quit (typically the Esc key)
    if (psychoJS.experiment.experimentEnded || psychoJS.eventManager.getKeys({
        keyList: ['escape']
      }).length > 0) {
      return quitPsychoJS('The [Escape] key was pressed. Goodbye!', false);
    }

    // check if the Routine should terminate
    if (!continueRoutine) { // a component has requested a forced-end of Routine
      return Scheduler.Event.NEXT;
    }

    continueRoutine = false; // reverts to True if at least one component still running
    for (const thisComponent of trialComponents)
      if ('status' in thisComponent && thisComponent.status !== PsychoJS.Status.FINISHED) {
        continueRoutine = true;
        break;
      }

    // refresh the screen if continuing
    if (continueRoutine) {
      return Scheduler.Event.FLIP_REPEAT;
    } else {
      return Scheduler.Event.NEXT;
    }
  };
}


function trialRoutineEnd(snapshot) {
  return function() {
    //------Ending Routine 'trial'-------
    for (const thisComponent of trialComponents) {
      if (typeof thisComponent.setAutoDraw === 'function') {
        thisComponent.setAutoDraw(false);
      }
    }
    psychoJS.experiment.addData('key_resp.keys', key_resp.keys);
    if (typeof key_resp.keys !== 'undefined') { // we had a response
      psychoJS.experiment.addData('key_resp.rt', key_resp.rt);
      routineTimer.reset();
    }

    key_resp.stop();
    // the Routine "trial" was not non-slip safe, so reset the non-slip timer
    routineTimer.reset();

    return Scheduler.Event.NEXT;
  };
}


function endLoopIteration(scheduler, snapshot) {
  // ------Prepare for next entry------
  return function() {
    if (typeof snapshot !== 'undefined') {
      // ------Check if user ended loop early------
      if (snapshot.finished) {
        // Check for and save orphaned data
        if (psychoJS.experiment.isEntryEmpty()) {
          psychoJS.experiment.nextEntry(snapshot);
        }
        scheduler.stop();
      } else {
        const thisTrial = snapshot.getCurrentTrial();
        if (typeof thisTrial === 'undefined' || !('isTrials' in thisTrial) || thisTrial.isTrials) {
          psychoJS.experiment.nextEntry(snapshot);
        }
      }
      return Scheduler.Event.NEXT;
    }
  };
}


function importConditions(currentLoop) {
  return function() {
    psychoJS.importAttributes(currentLoop.getCurrentTrial());
    return Scheduler.Event.NEXT;
  };
}


function quitPsychoJS(message, isCompleted) {
  // Check for and save orphaned data
  if (psychoJS.experiment.isEntryEmpty()) {
    psychoJS.experiment.nextEntry();
  }
  psychoJS.window.close();
  psychoJS.quit({
    message: message,
    isCompleted: isCompleted
  });

  return Scheduler.Event.QUIT;
}

created 3 years ago

Javascript Online Compiler

Write, Run & Share Javascript code online using OneCompiler's JS online compiler for free. It's one of the robust, feature-rich online compilers for Javascript language. Getting started with the OneCompiler's Javascript editor is easy and fast. The editor shows sample boilerplate code when you choose language as Javascript and start coding.

About Javascript

Javascript(JS) is a object-oriented programming language which adhere to ECMA Script Standards. Javascript is required to design the behaviour of the web pages.

Key Features

Open-source
Just-in-time compiled language
Embedded along with HTML and makes web pages alive
Originally named as LiveScript.
Executable in both browser and server which has Javascript engines like V8(chrome), SpiderMonkey(Firefox) etc.

Syntax help

STDIN Example

var readline = require('readline');
var rl = readline.createInterface({
  input: process.stdin,
  output: process.stdout,
  terminal: false
});

rl.on('line', function(line){
    console.log("Hello, " + line);
});

variable declaration

Keyword	Description	Scope
var	Var is used to declare variables(old way of declaring variables)	Function or global scope
let	let is also used to declare variables(new way)	Global or block Scope
const	const is used to declare const values. Once the value is assigned, it can not be modified	Global or block Scope

Backtick Strings

Interpolation

let greetings = `Hello ${name}`

Multi line Strings

const msg = `
hello
world!
`

Arrays

An array is a collection of items or values.

Syntax:

let arrayName = [value1, value2,..etc];
// or
let arrayName = new Array("value1","value2",..etc);

Example:

let mobiles = ["iPhone", "Samsung", "Pixel"];

// accessing an array
console.log(mobiles[0]);

// changing an array element
mobiles[3] = "Nokia";

Arrow functions

Arrow Functions helps developers to write code in concise way, it’s introduced in ES6.
Arrow functions can be written in multiple ways. Below are couple of ways to use arrow function but it can be written in many other ways as well.

Syntax:

() => expression

Example:

const numbers = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
const squaresOfEvenNumbers = numbers.filter(ele => ele % 2 == 0)
                                    .map(ele => ele ** 2);
console.log(squaresOfEvenNumbers);

De-structuring

Arrays

let [firstName, lastName] = ['Foo', 'Bar']

Objects

let {firstName, lastName} = {
  firstName: 'Foo',
  lastName: 'Bar'
}

rest(...) operator

 const {
    title,
    firstName,
    lastName,
    ...rest
  } = record;

Spread(...) operator

//Object spread
const post = {
  ...options,
  type: "new"
}
//array spread
const users = [
  ...adminUsers,
  ...normalUsers
]

Functions

function greetings({ name = 'Foo' } = {}) { //Defaulting name to Foo
  console.log(`Hello ${name}!`);
}
 
greet() // Hello Foo
greet({ name: 'Bar' }) // Hi Bar

Loops

1. If:

IF is used to execute a block of code based on a condition.

Syntax

if(condition){
    // code
}

2. If-Else:

Else part is used to execute the block of code when the condition fails.

Syntax

if(condition){
    // code
} else {
    // code
}

3. Switch:

Switch is used to replace nested If-Else statements.

Syntax

switch(condition){
    case 'value1' :
        //code
        [break;]
    case 'value2' :
        //code
        [break;]
    .......
    default :
        //code
        [break;]
}

4. For

For loop is used to iterate a set of statements based on a condition.

for(Initialization; Condition; Increment/decrement){  
//code  
}

5. While

While is also used to iterate a set of statements based on a condition. Usually while is preferred when number of iterations are not known in advance.

while (condition) {  
  // code 
}

6. Do-While

Do-while is also used to iterate a set of statements based on a condition. It is mostly used when you need to execute the statements atleast once.

do {  
  // code 
} while (condition);

Classes

ES6 introduced classes along with OOPS concepts in JS. Class is similar to a function which you can think like kind of template which will get called when ever you initialize class.

Syntax:

class className {
  constructor() { ... } //Mandatory Class method
  method1() { ... }
  method2() { ... }
  ...
}

Example:

class Mobile {
  constructor(model) {
    this.name = model;
  }
}

mbl = new Mobile("iPhone");