for循环打印出整个阵列的问题

Question

我正在练习数组和循环，并且遇到了这段代码的问题。 打印时，它不会打印出所有名称。 它仅打印：

I know someone called Athena

  var names = ["Paul", "Becky", "Aubrie", "Zeus", "Athena"]; var x = 1; for (var i = 0; i < 5; i += x) { console.log("I know someone called " + names[i]); } 

我究竟做错了什么？

Answer 1

这是一种怪异的循环方式，但是您正在练习，很好。 但是，您的代码正常工作。 这是一个演示：

 var names = ["Paul", "Becky", "Aubrie", "Zeus", "Athena"]; var x = 1; for (var i = 0; i < 5; i += x) { document.write("<br/>I know someone called " + names[i]); } 

Answer 2

这有效：

var names = ["Paul", "Becky", "Aubrie", "Zeus", "Athena"];

for (var i = 0; names.length > i; i++) {
    console.log("I know someone called " + names[i]);
}

JSFiddle

Answer 3

更紧凑

 var names = ["Paul", "Becky", "Aubrie", "Zeus", "Athena"]; for (var i in names) { document.write("I know someone called " + names[i] + "<br>"); }