javascript - 将文本传递到Twitter Web Intent时的未定义值

Question

我有将引用（单击按钮时随机生成）传递给Twitter的JQuery代码。但是，当您打开新窗口来鸣叫报价时，它会显示与实际报价相反的undefined值。

这是代码：

$(document).ready(function(){  
  var result;
function getQuotes(){ 

  var quotes = [ "Thousands of candles can be lighted from a single candle, and the life of the candle will not be shortened. Happiness never decreases by being shared.-\n Buddha",
"Happiness is the art of never holding in your mind the memory of any unpleasant thing that has passed.\n-Unknown",
"To be happy, we must not be too concerned with others.\n-Albert Camus",
"If you want happiness for an hour — take a nap.If you want happiness for a day — go fishing.If you want happiness for a year — inherit a fortune.If you want happiness for a lifetime — help someone else."]

var result = quotes[Math.floor(Math.random() * quotes.length)]; 

document.getElementById("stuff").innerHTML = result; 

}
  $("#tweet").on('click',function(){
  window.open("http://www.twitter.com/intent/tweet?text="+result);

});
  $(document).on('click', '#quotes', function() {
    getQuotes();
});

  });

这是指向代码笔的链接：http://codepen.io/sibraza/pen/KMPzxx?editors=1010

Answer 1

由于使用了两次result，因此您有2个不同的var变量。唯一获得值集的是getQuotes()内部的值集

在getQuotes()之外声明的另一个始终未定义。

尝试改变

var result = quotes[Math.floor(Math.random() * quotes.length)];

至

result = quotes[Math.floor(Math.random() * quotes.length)];