javascript - 为什么一次打印一个字母？

Question

为什么

让我们忘记我想要做什么!这就是最终发生的事情。为什么它一次打印一个字母？

http://jsfiddle.net/m9ZAc/

检查一下^^^

<div id="container">
</div>

<script>
    var ints = 0;
    var quest = ["Stack Overflow is for professional and enthusiast programmers, people who write code because they love it. We feel the best Stack Overflow questions have a bit of source code in them, but if your question generally covers…Stack Overflow is for professional and enthusiast programmers, people who write code because they love it. We feel the best Stack Overflow questions have a bit of source code in them, but if your question generally covers…Stack Overflow is for professional and enthusiast programmers, people who write code because they love it. We feel the best Stack Overflow questions have a bit of source code in them, but if your question generally covers…Stack Overflow is for professional and enthusiast programmers, people who write code because they love it. We feel the best Stack Overflow questions have a bit of source code in them, but if your question generally covers…Stack Overflow is for professional and enthusiast programmers, people who write code because they love it. We feel the best Stack Overflow questions have a bit of source code in them, but if your question generally covers…Stack Overflow is for professional and enthusiast programmers, people who write code because they love it. We feel the best Stack Overflow questions have a bit of source code in them, but if your question generally covers…Stack Overflow is for professional and enthusiast programmers, people who write code because they love it. We feel the best Stack Overflow questions have a bit of source code in them, but if your question generally covers…Stack Overflow is for professional and enthusiast programmers, people who write code because they love it. We feel the best Stack Overflow questions have a bit of source code in them, but if your question generally covers…"];
    setTimeout(function(){userRead.apply(this, quest)},50);
    function userRead(quest) {
        quest = quest;
        //var num = Math.floor(Math.random() * (1000 - 100 + 1) + 600);
        if(ints <= quest.length-1) {
            console.log(ints);
            textIt(quest[ints]);
            ints++;
            setTimeout(function(){userRead(quest)},50);}
        else {
            ints = 0;
            setTimeout(function(){userRead(quest)},50);}
    }
    function textIt(texting) {
        var app = document.getElementById('container');
        var box = document.createElement('span'); 
        box.innerHTML = texting;
        app.appendChild(box);
    }
</script>

Answer 1

userRead.apply(this, quest);

apply 的第二个参数是一个数组，该数组的元素成为被调用函数的单个参数

因此，userRead 的 quest 参数现在是您向 textIt 发送单个字符的单个字符串