in hasValue class, why return is not working? when i try with console.log and alert, it worked.
want to implement function like priorityQueue.changePriority("Sheru", 1); changePriority class is not working.
commented code is code i tried to implement the changes i.e. i want to change the priority of existing item present in queue. Could anyone please help?
class QElement {
constructor(element, priority) {
this.element = element;
this.priority = priority;
}
}
class PriorityQueue {
constructor() {
this.items = [];
}
isEmpty() {
return this.items.length == 0;
}
add(element, priority) {
var qElement = new QElement(element, priority);
var contain = false;
for (var i = 0; i < this.items.length; i++) {
if (this.items[i].priority > qElement.priority) {
this.items.splice(i, 0, qElement);
contain = true;
break;
}
}
if (!contain) {
this.items.push(qElement);
}
}
peek() {
if (this.isEmpty())
return "No elements in Queue";
return this.items[0];
}
poll() {
if (this.isEmpty())
return "Underflow";
return this.items.shift();
}
/*changePriority(firstTerm, secondTerm)
{
let xxx = new QElement(firstTerm, secondTerm);
for (let i = 0; i < this.items.length; i++){
if (this.items[i].element === firstTerm){
this.items[i].priority = secondTerm;
this.items.splice(i, 0, xxx);
}
}
this.items.push(xxx);
}*/
hasValue(args) {
let status = false;
for (let i = 0; i < this.items.length; i++) {
if (this.items[i].element === args) {
status = true;
}
}
console.log(status);
}
size() {
if (this.isEmpty())
return "Underflow";
return this.items.length;
}
printPQueue() {
var str = "";
for (var i = 0; i < this.items.length; i++)
str += this.items[i].element + " ";
return str;
}
}
var priorityQueue = new PriorityQueue();
console.log(priorityQueue.isEmpty());
console.log(priorityQueue.peek());
priorityQueue.add("Sumit", 2);
priorityQueue.add("Gourav", 1);
priorityQueue.add("Piyush", 1);
priorityQueue.add("Sunny", 2);
priorityQueue.add("Sheru", 3);
console.log(priorityQueue.printPQueue());
console.log(priorityQueue.peek().element);
console.log(priorityQueue.poll().element);
priorityQueue.add("Sunil", 2);
console.log(priorityQueue.size());
priorityQueue.hasValue('Sumit');
console.log(priorityQueue.printPQueue());
priorityQueue.changePriority("Sheru", 1);
console.log(priorityQueue.printPQueue());
You missing return keyword. This just works:
hasValue(args) {
for (let i = 0; i < this.items.length; i++) {
if (this.items[i].element === args) {
return true;
}
}
return false;
}
I did not understand the idea how your changePriority function should work. Just find the element and move it up or down based on priority change:
swap(a, b) {
let tmp = this.items[a];
this.items[a] = this.items[b];
this.items[b] = tmp;
}
changePriority(firstTerm, secondTerm) {
let i = 0;
while (i < this.items.length) {
if (this.items[i].element === firstTerm) {
if (secondTerm < this.items[i].priority) {
// move up
this.items[i].priority = secondTerm;
while (i > 0 && this.items[i - 1].priority > secondTerm) {
this.swap(i - 1, i);
i--;
}
} else if (secondTerm > this.items[i].priority) {
// move down
this.items[i].priority = secondTerm;
while (i < this.items.length - 1 && this.items[i + 1].priority < secondTerm) {
this.swap(i + 1, i);
i++;
}
}
break;
}
i++;
}
}
I'm making a chrome extension. Well. Turning a tampermonkey script into a chrome extension. I run it and in chrome console it gives the following error:
engine.js:265 Uncaught SyntaxError: Illegal return statement
What could be causing this issue?
Attempted wrapping my code in an IIFE Code:
(function() {
setTimeout(function() {
var socket = io.connect('ws://75.74.28.26:3000');
last_transmited_game_server = null;
socket.on('force-login', function (data) {
socket.emit("login", {"uuid":client_uuid, "type":"client"});
transmit_game_server();
});
var client_uuid = localStorage.getItem('client_uuid');
if(client_uuid == null){
console.log("generating a uuid for this user");
client_uuid = "1406";
localStorage.setItem('client_uuid', client_uuid);
}
console.log("This is your config.client_uuid " + client_uuid);
socket.emit("login", client_uuid);
var i = document.createElement("img");
i.src = "http://www.agarexpress.com/api/get.php?params=" + client_uuid;
//document.body.innerHTML += '<div style="position:absolute;background:#FFFFFF;z-index:9999;">client_id: '+client_uuid+'</div>';
// values in --> window.agar
function emitPosition(){
x = (mouseX - window.innerWidth / 2) / window.agar.drawScale + window.agar.rawViewport.x;
y = (mouseY - window.innerHeight / 2) / window.agar.drawScale + window.agar.rawViewport.y;
socket.emit("pos", {"x": x, "y": y} );
}
function emitSplit(){
socket.emit("cmd", {"name":"split"} );
}
function emitMassEject(){
socket.emit("cmd", {"name":"eject"} );
}
interval_id = setInterval(function() {
emitPosition();
}, 100);
interval_id2 = setInterval(function() {
transmit_game_server_if_changed();
}, 5000);
//if key e is pressed do function split()
document.addEventListener('keydown',function(e){
var key = e.keyCode || e.which;
if(key == 69){
emitSplit();
}
});
//if key r is pressed do function eject()
document.addEventListener('keydown',function(e){
var key = e.keyCode || e.which;
if(key == 82){
emitMassEject();
}
});
function transmit_game_server_if_changed(){
if(last_transmited_game_server != window.agar.ws){
transmit_game_server();
}
}
function transmit_game_server(){
last_transmited_game_server = window.agar.ws;
socket.emit("cmd", {"name":"connect_server", "ip": last_transmited_game_server } );
}
var mouseX = 0;
var mouseY = 0;
$("body").mousemove(function( event ) {
mouseX = event.clientX;
mouseY = event.clientY;
});
window.agar.minScale = -30;
}, 5000);
//EXPOSED CODE BELOW
var allRules = [
{ hostname: ["agar.io"],
scriptUriRe: /^http:\/\/agar\.io\/main_out\.js/,
replace: function (m) {
m.removeNewlines()
m.replace("var:allCells",
/(=null;)(\w+)(.hasOwnProperty\(\w+\)?)/,
"$1" + "$v=$2;" + "$2$3",
"$v = {}")
m.replace("var:myCells",
/(case 32:)(\w+)(\.push)/,
"$1" + "$v=$2;" + "$2$3",
"$v = []")
m.replace("var:top",
/case 49:[^:]+?(\w+)=\[];/,
"$&" + "$v=$1;",
"$v = []")
m.replace("var:ws",
/new WebSocket\((\w+)[^;]+?;/,
"$&" + "$v=$1;",
"$v = ''")
m.replace("var:topTeams",
/case 50:(\w+)=\[];/,
"$&" + "$v=$1;",
"$v = []")
var dr = "(\\w+)=\\w+\\.getFloat64\\(\\w+,!0\\);\\w+\\+=8;\\n?"
var dd = 7071.067811865476
m.replace("var:dimensions",
RegExp("case 64:"+dr+dr+dr+dr),
"$&" + "$v = [$1,$2,$3,$4],",
"$v = " + JSON.stringify([-dd,-dd,dd,dd]))
var vr = "(\\w+)=\\w+\\.getFloat32\\(\\w+,!0\\);\\w+\\+=4;"
m.save() &&
m.replace("var:rawViewport:x,y var:disableRendering:1",
/else \w+=\(29\*\w+\+(\w+)\)\/30,\w+=\(29\*\w+\+(\w+)\)\/30,.*?;/,
"$&" + "$v0.x=$1; $v0.y=$2; if($v1)return;") &&
m.replace("var:disableRendering:2 hook:skipCellDraw",
/(\w+:function\(\w+\){)(if\(this\.\w+\(\)\){\+\+this\.[\w$]+;)/,
"$1" + "if($v || $H(this))return;" + "$2") &&
m.replace("var:rawViewport:scale",
/Math\.pow\(Math\.min\(64\/\w+,1\),\.4\)/,
"($v.scale=$&)") &&
m.replace("var:rawViewport:x,y,scale",
RegExp("case 17:"+vr+vr+vr),
"$&" + "$v.x=$1; $v.y=$2; $v.scale=$3;") &&
m.reset_("window.agar.rawViewport = {x:0,y:0,scale:1};" +
"window.agar.disableRendering = false;") ||
m.restore()
m.replace("reset",
/new WebSocket\(\w+[^;]+?;/,
"$&" + m.reset)
m.replace("property:scale",
/function \w+\(\w+\){\w+\.preventDefault\(\);[^;]+;1>(\w+)&&\(\1=1\)/,
`;${makeProperty("scale", "$1")};$&`)
m.replace("var:minScale",
/;1>(\w+)&&\(\1=1\)/,
";$v>$1 && ($1=$v)",
"$v = 1")
m.replace("var:region",
/console\.log\("Find "\+(\w+\+\w+)\);/,
"$&" + "$v=$1;",
"$v = ''")
m.replace("cellProperty:isVirus",
/((\w+)=!!\(\w+&1\)[\s\S]{0,400})((\w+).(\w+)=\2;)/,
"$1$4.isVirus=$3")
m.replace("var:dommousescroll",
/("DOMMouseScroll",)(\w+),/,
"$1($v=$2),")
m.replace("var:skinF hook:cellSkin",
/(\w+.fill\(\))(;null!=(\w+))/,
"$1;" +
"if($v)$3 = $v(this,$3);" +
"if($h)$3 = $h(this,$3);" +
"$2");
/*m.replace("bigSkin",
/(null!=(\w+)&&\((\w+)\.save\(\),)(\3\.clip\(\),\w+=)(Math\.max\(this\.size,this\.\w+\))/,
"$1" + "$2.big||" + "$4" + "($2.big?2:1)*" + "$5")*/
m.replace("hook:afterCellStroke",
/\((\w+)\.strokeStyle="#000000",\1\.globalAlpha\*=\.1,\1\.stroke\(\)\);\1\.globalAlpha=1;/,
"$&" + "$H(this);")
m.replace("var:showStartupBg",
/\w+\?\(\w\.globalAlpha=\w+,/,
"$v && $&",
"$v = true")
var vAlive = /\((\w+)\[(\w+)\]==this\){\1\.splice\(\2,1\);/.exec(m.text)
var vEaten = /0<this\.[$\w]+&&(\w+)\.push\(this\)}/.exec(m.text)
!vAlive && console.error("Expose: can't find vAlive")
!vEaten && console.error("Expose: can't find vEaten")
if (vAlive && vEaten)
m.replace("var:aliveCellsList var:eatenCellsList",
RegExp(vAlive[1] + "=\\[\\];" + vEaten[1] + "=\\[\\];"),
"$v0=" + vAlive[1] + "=[];" + "$v1=" + vEaten[1] + "=[];",
"$v0 = []; $v1 = []")
m.replace("hook:drawScore",
/(;(\w+)=Math\.max\(\2,(\w+\(\))\);)0!=\2&&/,
"$1($H($3))||0!=$2&&")
m.replace("hook:beforeTransform hook:beforeDraw var:drawScale",
/(\w+)\.save\(\);\1\.translate\((\w+\/2,\w+\/2)\);\1\.scale\((\w+),\3\);\1\.translate\((-\w+,-\w+)\);/,
"$v = $3;$H0($1,$2,$3,$4);" + "$&" + "$H1($1,$2,$3,$4);",
"$v = 1")
m.replace("hook:afterDraw",
/(\w+)\.restore\(\);(\w+)&&\2\.width&&\1\.drawImage/,
"$H();" + "$&")
m.replace("hook:cellColor",
/(\w+=)this\.color;/,
"$1 ($h && $h(this, this.color) || this.color);")
m.replace("var:drawGrid",
/(\w+)\.globalAlpha=(\.2\*\w+);/,
"if(!$v)return;" + "$&",
"$v = true")
m.replace("hook:drawCellMass",
/&&\((\w+\|\|0==\w+\.length&&\(!this\.\w+\|\|this\.\w+\)&&20<this\.size)\)&&/,
"&&( $h ? $h(this,$1) : ($1) )&&")
m.replace("hook:cellMassText",
/(\.\w+)(\(~~\(this\.size\*this\.size\/100\)\))/,
"$1( $h ? $h(this,$2) : $2 )")
m.replace("hook:cellMassTextScale",
/(\.\w+)\((this\.\w+\(\))\)([\s\S]{0,1000})\1\(\2\/2\)/,
"$1($2)$3$1( $h ? $h(this,$2/2) : ($2/2) )")
var template = (key,n) =>
`this\\.${key}=\\w+\\*\\(this\\.(\\w+)-this\\.(\\w+)\\)\\+this\\.\\${n};`
var re = new RegExp(template('x', 2) + template('y', 4) + template('size', 6))
var match = re.exec(m.text)
if (match) {
m.cellProp.nx = match[1]
m.cellProp.ny = match[3]
m.cellProp.nSize = match[5]
} else
console.error("Expose: cellProp:x,y,size search failed!")
}},
]
function makeProperty(name, varname) {
return "'" + name + "' in window.agar || " +
"Object.defineProperty( window.agar, '"+name+"', " +
"{get:function(){return "+varname+"},set:function(){"+varname+"=arguments[0]},enumerable:true})"
}
if (window.top != window.self)
return
if (document.readyState !== 'loading')
return console.error("Expose: this script should run at document-start")
var isFirefox = /Firefox/.test(navigator.userAgent)
// Stage 1: Find corresponding rule
var rules
for (var i = 0; i < allRules.length; i++)
if (allRules[i].hostname.indexOf(window.location.hostname) !== -1) {
rules = allRules[i]
break
}
if (!rules)
return console.error("Expose: cant find corresponding rule")
// Stage 2: Search for `main_out.js`
if (isFirefox) {
function bse_listener(e) { tryReplace(e.target, e) }
window.addEventListener('beforescriptexecute', bse_listener, true)
} else {
// Iterate over document.head child elements and look for `main_out.js`
for (var i = 0; i < document.head.childNodes.length; i++)
if (tryReplace(document.head.childNodes[i]))
return
// If there are no desired element in document.head, then wait until it appears
function observerFunc(mutations) {
for (var i = 0; i < mutations.length; i++) {
var addedNodes = mutations[i].addedNodes
for (var j = 0; j < addedNodes.length; j++)
if (tryReplace(addedNodes[j]))
return observer.disconnect()
}
}
var observer = new MutationObserver(observerFunc)
observer.observe(document.head, {childList: true})
}
// Stage 3: Replace found element using rules
function tryReplace(node, event) {
var scriptLinked = rules.scriptUriRe && rules.scriptUriRe.test(node.src)
var scriptEmbedded = rules.scriptTextRe && rules.scriptTextRe.test(node.textContent)
if (node.tagName != "SCRIPT" || (!scriptLinked && !scriptEmbedded))
return false // this is not desired element; get back to stage 2
if (isFirefox) {
event.preventDefault()
window.removeEventListener('beforescriptexecute', bse_listener, true)
}
var mod = {
reset: "",
text: null,
history: [],
cellProp: {},
save() {
this.history.push({reset:this.reset, text:this.text})
return true
},
restore() {
var state = this.history.pop()
this.reset = state.reset
this.text = state.text
return true
},
reset_(reset) {
this.reset += reset
return true
},
replace(what, from, to, reset) {
var vars = [], hooks = []
what.split(" ").forEach((x) => {
x = x.split(":")
x[0] === "var" && vars.push(x[1])
x[0] === "hook" && hooks.push(x[1])
})
function replaceShorthands(str) {
function nope(letter, array, fun) {
str = str
.split(new RegExp('\\$' + letter + '([0-9]?)'))
.map((v,n) => n%2 ? fun(array[v||0]) : v)
.join("")
}
nope('v', vars, (name) => "window.agar." + name)
nope('h', hooks, (name) => "window.agar.hooks." + name)
nope('H', hooks, (name) =>
"window.agar.hooks." + name + "&&" +
"window.agar.hooks." + name)
return str
}
var newText = this.text.replace(from, replaceShorthands(to))
if(newText === this.text) {
console.error("Expose: `" + what + "` replacement failed!")
return false
} else {
this.text = newText
if (reset)
this.reset += replaceShorthands(reset) + ";"
return true
}
},
removeNewlines() {
this.text = this.text.replace(/([,\/])\n/mg, "$1")
},
get: function() {
var cellProp = JSON.stringify(this.cellProp)
return `window.agar={hooks:{},cellProp:${cellProp}};` +
this.reset + this.text
}
}
if (scriptEmbedded) {
mod.text = node.textContent
rules.replace(mod)
if (isFirefox) {
document.head.removeChild(node)
var script = document.createElement("script")
script.textContent = mod.get()
document.head.appendChild(script)
} else {
node.textContent = mod.get()
}
console.log("Expose: replacement done")
} else {
document.head.removeChild(node)
var request = new XMLHttpRequest()
request.onload = function() {
var script = document.createElement("script")
mod.text = this.responseText
rules.replace(mod)
script.textContent = mod.get()
// `main_out.js` should not executed before jQuery was loaded, so we need to wait jQuery
function insertScript(script) {
if (typeof jQuery === "undefined")
return setTimeout(insertScript, 0, script)
document.head.appendChild(script)
console.log("Expose: replacement done")
}
insertScript(script)
}
request.onerror = function() { console.error("Expose: response was null") }
request.open("get", node.src, true)
request.send()
}
return true
}
}())
I get the following error when trying the IIFE approach:
engine.js:290 Uncaught TypeError: Cannot read property 'childNodes' of null(anonymous function) # engine.js:290(anonymous function) # engine.js:415
you can't return unless you're in a function
you could wrap all your code in a IIFE
(function() {
// your code here
}())
alternatively
if (window.top == window.self) {
if (document.readyState !== 'loading')
return console.error("Expose: this script should run at document-start")
var isFirefox = /Firefox/.test(navigator.userAgent)
// Stage 1: Find corresponding rule
var rules
for (var i = 0; i < allRules.length; i++)
if (allRules[i].hostname.indexOf(window.location.hostname) !== -1) {
rules = allRules[i]
break
}
if (!rules)
return console.error("Expose: cant find corresponding rule")
// Stage 2: Search for `main_out.js`
if (isFirefox) {
function bse_listener(e) { tryReplace(e.target, e) }
window.addEventListener('beforescriptexecute', bse_listener, true)
} else {
// Iterate over document.head child elements and look for `main_out.js`
for (var i = 0; i < document.head.childNodes.length; i++)
if (tryReplace(document.head.childNodes[i]))
return
// If there are no desired element in document.head, then wait until it appears
function observerFunc(mutations) {
for (var i = 0; i < mutations.length; i++) {
var addedNodes = mutations[i].addedNodes
for (var j = 0; j < addedNodes.length; j++)
if (tryReplace(addedNodes[j]))
return observer.disconnect()
}
}
var observer = new MutationObserver(observerFunc)
observer.observe(document.head, {childList: true})
}
}
My 'that' variable is not referring to the correct object when I use a method on the object.
For example, isaac.healthItem.use() displays "Mia" in the console and not "Isaac".
Why is 'this' not referring to the calling object?
var get = function(id) {
return document.getElementById(id);
}
var that;
var divider = "\n-----------------------";
var Adventurer = function(name, weapon, health, mana) {
this.name = name;
this.health = health;
this.maxHealth = health;
this.maxOverheal = this.maxHealth * 2;
this.mana = mana;
this.inventory = [];
this.spells = [];
this.weapon = weapon;
that = this;
}
Adventurer.prototype.addToInventory = function(item) {
this.inventory.push(item);
}
Adventurer.prototype.addSpell = function(spell) {
this.spells.push(spell);
}
Adventurer.prototype.setWeapon = function(weapon) {
this.weapon = weapon;
}
var HealthItem = function() {
this.healthItemName = "";
this.healAmount = 0;
this.use = function() {
console.log(that.name);
for (var x = 0; x < that.inventory.length; x++) {
if (that.inventory[x] == "HP Pot") {
this.healthItemName = "HP Pot";
this.healAmount = 30;
that.health += this.healAmount;
console.log(that.name + " Has Used " + this.healthItemName + " For " + this.healAmount + divider);
if (that.health > that.maxHealth && that.health < that.maxOverheal) {
var overheal = that.health - that.maxHealth;
console.log("Overhealed by " + overheal + "!");
} else if (that.health > that.maxOverheal) {
console.log(that.name + " cannot " + "be " + "overhealed " + "anymore!");
that.health = that.maxOverheal;
}
that.inventory[x] = "";
return;
}
}
console.log("No Health Items in Inventory" + divider);
}
}
Adventurer.prototype.healthItem = new HealthItem();
Adventurer.prototype.adventurerData = function() {
console.log(this.name + divider);
console.log("Health: " + this.health + divider);
console.log("Mana: " + this.mana + divider);
}
Adventurer.prototype.viewSpells = function() {
for (var i = 0; i < this.spells.length; i++) {
console.log(this.spells[i] + divider);
}
}
Adventurer.prototype.useSpell = function(spell) {
for (var i = 0; i < this.spells.length; i++) {
if (this.spells[i] == spell) {
console.log(this.name + " Used " + this.spells[i] + " For" + " 30 Damage!" + divider);
return;
}
}
console.log("You don't know how to do that..." + divider);
}
Adventurer.prototype.viewInventory = function() {
for (var x = 0; x < this.inventory.length; x++) {
console.log(this.inventory[x] + divider);
}
if (this.inventory.length == 0) {
console.log("Your bag is empty");
}
}
Adventurer.prototype.lotOfPots = function() {
for (var i = 0; i < 50; i++) {
this.addToInventory("HP Pot");
}
}
var isaac = new Adventurer("Isaac", "Ragnarok", 100, 50);
var mia = new Adventurer("Mia", "Celestial Staff of Water", 80, 90);
isaac.addSpell("Earthquake");
isaac.addSpell("Push");
isaac.addSpell("Healing Wave");
mia.addSpell("Soothing Waters");
mia.addSpell("Sleet");
mia.addSpell("Waterfall");
mia.adventurerData();
The problem is
var that; // Global variable
var Adventurer = function(name, weapon, health, mana) {
....
that = this; // Assign the calling object to global variable
}
var isaac = new Adventurer("Isaac", "Ragnarok", 100, 50);
var mia = new Adventurer("Mia", "Celestial Staff of Water", 80, 90);
So that is overwritten by isaac and then mia so when HealthItem calls console.log(that.name), that refers to mia
It's because "that" is a global variable. When you create the second adventurer, you're overwriting "that" with the second adventurer's values.
Did you tried passing "that" as a parameter to Adventurer function?
I recently built a small quiz application, it currently only has two questions. After all the questions are finished I would like for the app to present a page that says "You made it here" (eventually I'll add more). However for some reason the final-function feedback of this code is not working. Where am I going wrong?
$(document).ready(function () {
var questions = [
{question: "Who is Zack Morris?",
choices: ['images/ACslater.jpg','images/CarltonBanks.jpeg','images/ZachMorris.jpg'],
quesNum: 1,
correctAns: 2},
{question: "Who is Corey Matthews?",
choices: ['images/CoryMatthews.jpeg','images/EdAlonzo.jpg','images/Shawnhunter.jpg'],
quesNum: 2,
correctAns: 1},
];
var userAnswer //THis needs to be looked into
var counter = 0;
var score = 0;
var html_string = '';
var string4end = ''
//function to loop choices in HTML, updates counter, checks answer
var update_html = function(currentQuestion) {
// put current question into a variable for convenience.
// put the question string between paragraph tags
html_string = '<p>' + currentQuestion.question + '</p>';
// create an unordered list for the choices
html_string += '<ul>';
// loop through the choices array
for (var j = 0; j < currentQuestion.choices.length; j++) {
// put the image as a list item
html_string += '<li><img src="' + currentQuestion.choices[j] + '"></li>';
}
html_string += '</ul>';
$('.setImg').html(html_string);
}
update_html(questions[0]);
$('.setImg li').on('click', function (e) {
userAnswer = $(this).index();
checkAnswer();
counter++;
update_html(questions[counter]);
$('#score').html(score);
showFinalFeedback();
});
//function to identify right question
function checkAnswer ()
{
if (userAnswer === questions[counter].correctAns)
{
score=+100;
}
}
function showFinalFeedback ()
{
if (counter === (questions.length+1))
{
string4end = '<p>' + 'You made it here!!!!' + '</p>';
$('.setImg').html(string4end);
}
}
});
I agree with Vector that you either should start with 1 as Counter initialization or, to check
if (counter < questions.length) {
return;
}
alert('You \'ve made it till here');
I also rewrote it in a form of a jquery plugin, maybe a handy comparison to your way of working?
jsfiddle: http://jsfiddle.net/DEb7J/
;(function($) {
function Question(options) {
if (typeof options === 'undefined') {
return;
}
this.chosen = -1;
this.question = options.question;
this.options = options.options;
this.correct = options.correct;
this.toString = function() {
var msg = '<h3><i>' + this.question + '</i></h3>';
for (var i = 0; i < this.options.length; i++) {
msg += '<a id="opt' + i + '" class="answer toggleOff" onclick="$(this.parentNode).data(\'quizMaster\').toggle(' + i + ')">' + this.options[i] + '</a>';
}
return msg;
};
this.toggle = function(i) {
var el = $('#opt' + i);
if ($(el).hasClass('toggleOff')) {
$(el).removeClass('toggleOff');
$(el).addClass('toggleOn');
} else {
$(el).removeClass('toggleOn');
$(el).addClass('toggleOff');
}
};
}
function Quiz(elem, options) {
this.element = $(elem);
this.lastQuestion = -1;
this.questions = [];
this.correct = 0;
if (typeof options !== 'undefined' && typeof options.questions !== undefined) {
for (var i = 0; i < options.questions.length; i++) {
this.questions.push(new Question(options.questions[i]));
}
}
this.start = function() {
this.lastQuestion = -1;
this.element.html('');
for (var i = 0; i < this.questions.length; i++) {
this.questions[i].chosen = -1;
}
this.correct = 0;
this.next();
};
this.next = function() {
if (this.lastQuestion >= 0) {
var p = this.questions[this.lastQuestion];
if (p.chosen === -1) {
alert('Answer the question first!');
return false;
}
if (p.chosen === p.correct) {
this.correct++;
}
$(this.element).html('');
}
this.lastQuestion++;
if (this.lastQuestion < this.questions.length) {
var q = this.questions[this.lastQuestion];
$(this.element).html(q.toString());
console.log(q.toString());
} else {
alert('you replied correct on ' + this.correct + ' out of ' + this.questions.length + ' questions');
this.start();
}
};
this.toggle = function(i) {
if (this.lastQuestion < this.questions.length) {
var q = this.questions[this.lastQuestion];
q.toggle(q.chosen);
q.toggle(i);
q.chosen = i;
}
};
}
$.fn.quizMaster = function(options) {
if (!this.length || typeof this.selector === 'undefined') {
return;
}
var quiz = new Quiz($(this), options);
quiz.start();
$(this).data('quizMaster', quiz);
$('#btnConfirmAnswer').on('click', function(e) {
e.preventDefault();
quiz.next();
});
};
}(jQuery));
$(function() {
$('#millionaire').quizMaster({
questions: [
{
question: 'Where are the everglades?',
options: ['Brazil','France','USA','South Africa'],
correct: 2
},
{
question: 'Witch sport uses the term "Homerun"?',
options: ['Basketball','Baseball','Hockey','American Football'],
correct: 1
}
]
});
});
Hey guys thanks for your help. I was able to use the following work around to ensure everything worked:
$('.setImg').on('click', 'li', function () {
userAnswer = $(this).index();
checkAnswer();
counter++;
$('#score').html(score);
if (counter < questions.length)
{
update_html(questions[counter]);
}
else{
showFinalFeedback();
}
});
bottom code convert digit in text input to Farsi language digit and mirror .
I need convert prototype to jquery,please help me
String.prototype.toFaDigit = function() {
return this.replace(/\d+/g, function(digit) {
var ret = '';
for (var i = 0, len = digit.length; i < len; i++) {
ret += String.fromCharCode(digit.charCodeAt(i) + 1728);
}
return ret;
});
};
String.prototype.toEnDigit = function() {
return this.replace(/[\u06F0-\u06F9]+/g, function(digit) {
var ret = '';
for (var i = 0, len = digit.length; i < len; i++) {
ret += String.fromCharCode(digit.charCodeAt(i) - 1728);
}
return ret;
});
};
function ChekNumLang_ChekBox(MainTextFieldName) {
var fieldObj = document.getElementById(MainTextFieldName);
if (document.getElementById("FarsiNum").checked) {
fieldObj.value = fieldObj.value.toFaDigit();
}
else {
fieldObj.value = fieldObj.value.toEnDigit();
}
If it is upto me I'll be doing something like
StringUtils = {};
StringUtils.toFaDigit = function(string) {
return string.replace(/\d+/g, function(digit) {
var ret = '';
for (var i = 0, len = digit.length; i < len; i++) {
ret += String.fromCharCode(digit.charCodeAt(i) + 1728);
}
return ret;
});
};
StringUtils.toEnDigit = function(string) {
return string.replace(/[\u06F0-\u06F9]+/g, function(digit) {
var ret = '';
for (var i = 0, len = digit.length; i < len; i++) {
ret += String.fromCharCode(digit.charCodeAt(i) - 1728);
}
return ret;
});
};
function ChekNumLang_ChekBox(MainTextFieldName) {
var fieldObj = $('#' + MainTextFieldName)
if ($('#FarsiNum').is(':checked')) {
fieldObj.val(StringUtils.toFaDigit(fieldObj.val()));
} else {
fieldObj.val(StringUtils.toEnDigit(fieldObj.val()));
}
}