Javascript 函数在被另一个函数调用时不会激发
温柔一点,我对JavaScript非常陌生: 我正在制作一款21点游戏——一些关于CodeAcademy的教程涵盖了一些基础知识,所以我试图自己再进一步。作为打印每个玩家姓名的前奏,我创建了一个函数(Javascript 函数在被另一个函数调用时不会激发,javascript,html,Javascript,Html,温柔一点,我对JavaScript非常陌生: 我正在制作一款21点游戏——一些关于CodeAcademy的教程涵盖了一些基础知识,所以我试图自己再进一步。作为打印每个玩家姓名的前奏,我创建了一个函数(showNames()),将“砰,砰!”打印到我的“hud”部分。当我(临时)将showNames()分配给我的“点击”按钮的onclick功能时,这一点就起作用了。但是,当我尝试从我的setupGame()函数调用showNames()时,它不会启动。我哪里做错了?代码如下: index.html
showNames()
),将“砰,砰!”打印到我的“hud”部分。当我(临时)将showNames()
分配给我的“点击”按钮的onclick
功能时,这一点就起作用了。但是,当我尝试从我的setupGame()
函数调用showNames()
时,它不会启动。我哪里做错了?代码如下:
index.html:
<!DOCTYPE html>
<html>
<head>
<title>Awesome Blackjack!</title>
<link rel="stylesheet" type="text/css" href="common/css/default.css" />
<link href='http://fonts.googleapis.com/css?family=Source+Sans+Pro|Galindo|Duru+Sans|Jolly+Lodger|McLaren' rel='stylesheet' type='text/css'>
<script type="text/javascript" src="common/js/blackjack_controller.js"></script>
<script type="text/javascript">
function play() {
if (setupGame()) {
showNames();
alert("Pow");
} else {
alert("You must enter a number between 1 and 4.");
}
}
</script>
</head>
<body>
<div id="wrapper">
<section id="hud">
<div class="player" id="player1">
<div class="playerName">Drew</div>
<div class="playerScore">21</div>
</div>
<div class="player">
<div class="playerName">Dalton</div>
<div class="playerScore">12</div>
</div>
<div class="player">
<div class="playerName">Lindsey</div>
<div class="playerScore">23</div>
</div>
<div class="player">
<div class="playerName">Steven</div>
<div class="playerScore">9</div>
</div>
</section>
<section id="table">
<div id="controls">
<input type="button" name="start" id="start" value="Start" class="control start" onclick="play()"; />
<input type="button" name="hit" id="hit" value="Hit" class="control hit" onclick="showNames()"; />
<input type="button" name="stay" id="stay" value="Stay" class="control stay" />
</div>
<div id="dealer">
<div id="dealerName">Dealer</div>
<div id="dealerScore">19</div>
<div id="playArea">
<div class="card dealer club first">9</div>
<div class="card dealer club">9</div>
<div class="card dealer club">9</div>
<div class="card dealer heart king"></div>
</div>
</div>
<div id="playerWrapper">
<div class="playerArea a">
<div class="playerAreaName">Drew</div>
<div class="card club first">9</div>
<div class="card club">9</div>
<div class="card club">9</div>
<div class="card heart king"></div>
</div>
<div class="playerArea b">
<div class="playerAreaName">Drew</div>
</div>
<div class="playerArea c">
<div class="playerAreaName">Drew</div>
</div>
<div class="playerArea d">
<div class="playerAreaName">Drew</div>
</div>
</div>
</section>
</div>
</body>
</html>
var numberOfPlayer = 0;
var players = new Array();
var name;
var names;
// Methods
function showNames() {
document.getElementById("hud").innerHTML = "Bang, Boom!";
};
function setupGame() {
numberOfPlayers = prompt("Please enter the number of players (up to 4).");
if (numberOfPlayers > 0 && numberOfPlayers <= 4) {
for (var i = 1; i <= numberOfPlayers; i++) {
players[i] = new Player(prompt("Enter a name for player " + i + "."));
}
for (var i = 1; i <= numberOfPlayers; i++) {
names += players[i].printName();
}
return true;
}
return false;
}
// Classes
function Player(name) {
this.name = name;
this.cards = new Array();
this.score = 0;
function printName() {
return this.name + " ";
}
}
真棒的21点!
函数播放(){
if(setupGame()){
showNames();
警报(“Pow”);
}否则{
警报(“您必须输入一个介于1和4之间的数字”);
}
}
德鲁
21
道尔顿
12
林赛
23
史蒂文
9
经销商
19
9
9
9
德鲁
9
9
9
德鲁
德鲁
德鲁
blackjack\u controller.js:
<!DOCTYPE html>
<html>
<head>
<title>Awesome Blackjack!</title>
<link rel="stylesheet" type="text/css" href="common/css/default.css" />
<link href='http://fonts.googleapis.com/css?family=Source+Sans+Pro|Galindo|Duru+Sans|Jolly+Lodger|McLaren' rel='stylesheet' type='text/css'>
<script type="text/javascript" src="common/js/blackjack_controller.js"></script>
<script type="text/javascript">
function play() {
if (setupGame()) {
showNames();
alert("Pow");
} else {
alert("You must enter a number between 1 and 4.");
}
}
</script>
</head>
<body>
<div id="wrapper">
<section id="hud">
<div class="player" id="player1">
<div class="playerName">Drew</div>
<div class="playerScore">21</div>
</div>
<div class="player">
<div class="playerName">Dalton</div>
<div class="playerScore">12</div>
</div>
<div class="player">
<div class="playerName">Lindsey</div>
<div class="playerScore">23</div>
</div>
<div class="player">
<div class="playerName">Steven</div>
<div class="playerScore">9</div>
</div>
</section>
<section id="table">
<div id="controls">
<input type="button" name="start" id="start" value="Start" class="control start" onclick="play()"; />
<input type="button" name="hit" id="hit" value="Hit" class="control hit" onclick="showNames()"; />
<input type="button" name="stay" id="stay" value="Stay" class="control stay" />
</div>
<div id="dealer">
<div id="dealerName">Dealer</div>
<div id="dealerScore">19</div>
<div id="playArea">
<div class="card dealer club first">9</div>
<div class="card dealer club">9</div>
<div class="card dealer club">9</div>
<div class="card dealer heart king"></div>
</div>
</div>
<div id="playerWrapper">
<div class="playerArea a">
<div class="playerAreaName">Drew</div>
<div class="card club first">9</div>
<div class="card club">9</div>
<div class="card club">9</div>
<div class="card heart king"></div>
</div>
<div class="playerArea b">
<div class="playerAreaName">Drew</div>
</div>
<div class="playerArea c">
<div class="playerAreaName">Drew</div>
</div>
<div class="playerArea d">
<div class="playerAreaName">Drew</div>
</div>
</div>
</section>
</div>
</body>
</html>
var numberOfPlayer = 0;
var players = new Array();
var name;
var names;
// Methods
function showNames() {
document.getElementById("hud").innerHTML = "Bang, Boom!";
};
function setupGame() {
numberOfPlayers = prompt("Please enter the number of players (up to 4).");
if (numberOfPlayers > 0 && numberOfPlayers <= 4) {
for (var i = 1; i <= numberOfPlayers; i++) {
players[i] = new Player(prompt("Enter a name for player " + i + "."));
}
for (var i = 1; i <= numberOfPlayers; i++) {
names += players[i].printName();
}
return true;
}
return false;
}
// Classes
function Player(name) {
this.name = name;
this.cards = new Array();
this.score = 0;
function printName() {
return this.name + " ";
}
}
var numberOfPlayer=0;
var players=新数组();
变量名;
变量名称;
//方法
函数showNames(){
document.getElementById(“hud”).innerHTML=“砰,砰!”;
};
函数setupGame(){
numberOfPlayers=提示(“请输入玩家数量(最多4名)”;
如果(numberOfPlayers>0&&numberOfPlayers您定义的方法错误。它应该类似于以下内容:
this.printName = function() {
return this.name + " ";
}
您定义的方法错误。它应该类似于以下内容:
this.printName = function() {
return this.name + " ";
}
Player.printName仅存在于函数播放器中。
您需要返回(引用)它才能从外部访问它
此外..Player
可以以不同的方式实现(更完美)。。
看看“模块模式”(如果您想了解javascript,模块模式是必读的)
Player.printName仅存在于函数播放器中。
您需要返回(引用)它才能从外部访问它
此外..Player
可以以不同的方式实现(更完美)。。
看看“模块模式”(如果您想了解javascript,模块模式是必读的)