Javascript 数组警报

编程入门行业动态更新时间:2024-10-10 13:20:42

本文介绍了Javascript 数组警报的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！问题描述

我是 Javascript 新手.

Im new to Javascript.

我正在尝试编写这四个按钮.我目前在做第二个.我编写了一个数组.但是当我点击按钮时，它会替换页面.我想在警告框中显示数组.

Im trying to code these four buttons. I'm currently on the second one. I've coded an array. But when I click on the button, it replaces the page. I want to display the array in an alert box.

<html> <head> <script type="text/javascript"> function SayHello() { alert("Hello World!"); } function DumpCustomers() { var aCustomers=new Array(); aCustomers[0]="Frank Sinatra "; aCustomers[1]="Bob Villa "; aCustomers[2]="Kurt Cobain "; aCustomers[3]="Tom Cruise "; aCustomers[4]="Tim Robbins "; aCustomers[5]="Santa Claus "; aCustomers[6]="Easter Bunny "; aCustomers[7]="Clark Kent "; aCustomers[8]="Marry Poppins "; aCustomers[9]="John Wayne "; document.write(aCustomers[0]); document.write(aCustomers[1]); document.write(aCustomers[2]); document.write(aCustomers[3]); document.write(aCustomers[4]); document.write(aCustomers[5]); document.write(aCustomers[6]); document.write(aCustomers[7]); document.write(aCustomers[8]); document.write(aCustomers[9]); } function DisplayFishCounts() { } function FindJonGalt() { } </script> </head> <body> <form name="Main"> <input type="button" id=1 onclick="SayHello();" value="Say Hi"/> <input type="button" id=1 onclick="DumpCustomers();" value="Dump Customers"/> <input type="button" id=1 onclick="DisplayFishCounts();" value="Display Fish Counts"/> <input type="button" id=1 onclick="FindJonGalt();" value="Where is Jon Galt?"/> </form> </body> </html>

推荐答案

如果想把数组看成数组，可以说

If you want to see the array as an array, you can say

alert(JSON.stringify(aCustomers));

而不是所有那些 document.writes.

jsfiddle/5b2eb/

但是，如果您想在弹出窗口中清晰地显示它们，每行一个，请执行以下操作:

However, if you want to display them cleanly, one per line, in your popup, do this:

alert(aCustomers.join(" "));

jsfiddle/5b2eb/1/

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Javascript 数组警报