通過onClick選擇選項
[英]Chosen option by onClick
問題描述
您好，我是JavaScript Fruit1 ，點擊"Click me"按鈕后如何獲得Fruit1和Fruit2
例如：如果我單擊按鈕，則從選項中選擇2種水果。 如果我要選擇蘋果和香蕉，那么它應該提醒"You choose Apple and Banana"
<html>
<head>
<script type="text/javascript">
function yourChoose() {
alert("Now, let's choose 2 fruit do you like ?");
// code for i choose 2 fruits
var Fruit1 = .....;
var Fruit2 = .....;
alert("You choose "+Fruit1+" and "+Fruit2)
}
</script>
</head>
<body>
<button name="clickme" onclick="yourChoose()" >click me </button><br/>
<a href=""> Apple </a><br/>
<a href=""> Banana </a><br/>
<a href=""> Coconut </a><br/>
<a href=""> Durian </a><br/>
<a href=""> ElderBerry </a>
</body>
</html>
4 個解決方案
解決方案1
2 已采納 2014-02-20 14:28:53
這是沒有jquery但帶有OOP的示例：）
<html>
<head>
<script type="text/javascript">
function Fruiter(){ // Class that manage your fruits
this.addFruit = function(fr){ // adding fruits
if (this.fr1) {
this.fr2 = fr;
alert("You choose "+this.fr1+" and "+this.fr2); // show messages when all fruits choosed
} else {this.fr1 = fr;}
}
this.chooseFruit = function(fr){ // choosing fruits / reseting
this.fr1 = null;
alert("Now, let's choose 2 fruit do you like ?");
}
}
var f = new Fruiter();
</script>
</head>
<body>
<button name="clickme" onclick="f.chooseFruit()" >click me </button><br/>
<a href="#" onclick="f.addFruit('Apple')"> Apple </a><br/>
<a href="#" onclick="f.addFruit('Banana')"> Banana </a><br/>
<a href="#" onclick="f.addFruit('Coconut')"> Coconut </a><br/>
<a href="#" onclick="f.addFruit('Durian')"> Durian </a><br/>
<a href="#" onclick="f.addFruit('ElderBerry')"> ElderBerry </a>
</body>
</html>
解決方案2
1 2014-02-20 13:47:46
添加以下javascript：
var fruit1=""; //set the global variables
var fruit2="";
function selectFruit(name){
fruit2=fruit1; //this will set the global variables
fruit1=name; //at only 1 point of time 2 fruits are selected!
}
函數selectFruit將確保僅存儲最近單擊的2個水果
接下來，將您的鏈接更改為以下內容：
<a href="javascript:void(0)" onclick="selectFruit('Apple')"> Apple </a><br/>
<a href="javascript:void(0)" onclick="selectFruit('Banana')"> Banana </a><br/>
<a href="javascript:void(0)" onclick="selectFruit('Coconut')"> Coconut </a><br/>
<a href="javascript:void(0)" onclick="selectFruit('Durian')"> Durian </a><br/>
<a href="javascript:void(0)" onclick="selectFruit('ElderBerry')"> ElderBerry </a><br/>
解決方案3
0 2014-02-20 13:45:36
這是jQuery的解決方案： http : //jsfiddle.net/guy777/8mJG5/
HTML：
<button id='btn' name="clickme">click me </button><br/>
<a href=""> Apple </a><br/>
<a href=""> Banana </a><br/>
<a href=""> Coconut </a><br/>
<a href=""> Durian </a><br/>
<a href=""> ElderBerry </a>
JavaScript：
$('#btn').on('click', function(e) {
var a = $('a');
var fruits = [];
$.map(a, function(fruit) {
fruits.push(fruit.text);
});
console.log(fruits);
});
解決方案4
0 2014-02-20 13:47:00
您可以使用此> http://fiddle.jshell.net/gUryq/3/
var fruits = { fruit1 : "", fruit2 : ""};
$("#clickme").click(function() {
if(fruits.fruit1 == "" && fruits.fruit2 == "") {
alert("Now, let's choose 2 fruit do you like ?");
} else {
alert("pls choose the other fruit first!");
}
});
... jquery正在使用中！
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