数组问题：没有属性 - 为什么？ [英] Array problem: has no properties - why?
问题描述
人们
我在javascript中有一个多维数组，如下所示：
gameRecord = new Array（500）;
gameRecord [1] [1] =" FA Cup：2005年2月19日" ;;
gameRecord [1] [2] [1 ] =" Arsenal v Sheff Utd，12：30" ;;
gameRecord [1] [2] [2] =" Bolton v Fulham，15：00"
gameRecord [1] [2] [3] =" Charlton v Leicester，15：00;
gameRecord [1] [2] [4] =" Everton v Man Utd， 17：30;
gameRecord [1] [2] [5] =" Southampton v Brentford，15：00";
有很多更多的记录，但上面只是一个提取...
它被写入自己的javascript文件（称为football.js）我用
调用
< script language =" JavaScript" type =" text / javascript"
src =" football.js">< / script>
我知道它正在阅读它，因为一个测试，我在文件前面加了一个
简单警报（here）;然后我大喊大叫。
为什么即使在我从数组中读取之前，我在Mozilla的JavaScript控制台中收到了
以下错误消息...
错误：gameRecord [1]没有属性
我收集我正在初始化数组错误 - 有人会关心
指引我朝正确的方向发展？
谢谢
Randell D.
Folks
I have a multi-dimensional array in javascript, as follows:
gameRecord=new Array(500);
gameRecord[1][1]="FA Cup : 19 February 2005";
gameRecord[1][2][1]="Arsenal v Sheff Utd, 12:30";
gameRecord[1][2][2]="Bolton v Fulham, 15:00";
gameRecord[1][2][3]="Charlton v Leicester, 15:00";
gameRecord[1][2][4]="Everton v Man Utd, 17:30";
gameRecord[1][2][5]="Southampton v Brentford, 15:00";
There are alot more records to it, but the above is just an extract...
It is written into its own javascript file (called football.js) which I
call using
<script language="JavaScript" type="text/javascript"
src="football.js"></script>
I know its reading it because for a test, I preceeded the file with a
simple alert("here"); and this shouted back at me.
How come though that even before I read from the array I get the
following error message in the JavaScript Console in Mozilla...
Error: gameRecord[1] has no properties
I gather I am initializing the array incorrectly - would someone care to
direct me in the right direction?
Thanks
Randell D.
推荐答案
Randell D.写道：
Randell D. wrote:
我收集我正在错误地初始化数组 - 有人会关心
指引我朝正确的方向发展吗？
I gather I am initializing the array incorrectly - would someone care
to direct me in the right direction?
你应该在使用它们之前初始化数组，包括多维
数组：
var gameRecord = [];
gameRecord [1] = [];
gameRecord [1] [1] =" FA Cup：2005年2月19日" ;;
gameRecord [1] [2] = [];
gameRecord [1] [2] [1] =" Arsenal v Sheff Utd，12：30" ;;
JW
You should initialize arrays before using them, including multidimensional
arrays:
var gameRecord = [];
gameRecord[1] = [];
gameRecord[1][1] = "FA Cup : 19 February 2005";
gameRecord[1][2] = [];
gameRecord[1][2][1] = "Arsenal v Sheff Utd, 12:30";
JW
2005年2月19日星期六09:30:05 GMT Randell D.写道：
On Sat, 19 Feb 2005 09:30:05 GMT Randell D. wrote:
人们
我在javascript中有一个多维数组，如下所示：
gameRecord = new Array（500）;
gameRecord [ 1] [1] ="足总杯：2005年2月19日" ;;
gameRecord [1] [2] [1] =" Arsenal v Sheff Utd，12：30"
gameRecord [1 ] [2] [2] =" Bolton v Fulham，15：00"
gameRecord [1] [2] [3] =" Charlton v Leicester，15：00"
gameRecord [1] [2] [4] =" Everton v Man Utd，17：30"
gameRecord [1] [2] [5] =" Southampton v Brentford，15：00" ;;
有很多记录，但上面只是一个摘录...
它被写入自己的javascript文件（称为football.js），我用$ b调用它$ b< script language =" JavaScript" type =" text / javascript"
src =" football.js">< / script>
我知道它正在阅读它，因为在测试中，我在文件前面加上一个简单的警告（here）;这对我大声喊叫。
为什么即使在我从数组中读取之前，我在Mozilla的JavaScript控制台中收到了以下错误消息...
错误：gameRecord [1]没有属性
我收集我正在错误地初始化阵列 - 有人会关心
指导我朝正确的方向发展吗？
谢谢
Randell D。
Folks I have a multi-dimensional array in javascript, as follows: gameRecord=new Array(500);
gameRecord[1][1]="FA Cup : 19 February 2005";
gameRecord[1][2][1]="Arsenal v Sheff Utd, 12:30";
gameRecord[1][2][2]="Bolton v Fulham, 15:00";
gameRecord[1][2][3]="Charlton v Leicester, 15:00";
gameRecord[1][2][4]="Everton v Man Utd, 17:30";
gameRecord[1][2][5]="Southampton v Brentford, 15:00"; There are alot more records to it, but the above is just an extract...
It is written into its own javascript file (called football.js) which I
call using <script language="JavaScript" type="text/javascript"
src="football.js"></script> I know its reading it because for a test, I preceeded the file with a
simple alert("here"); and this shouted back at me. How come though that even before I read from the array I get the
following error message in the JavaScript Console in Mozilla... Error: gameRecord[1] has no properties I gather I am initializing the array incorrectly - would someone care
to
direct me in the right direction? Thanks
Randell D.
gameRecord [1] =" Top_Level"。
既然你发现了它，脚本需要其中的东西。
没有什么说你必须使用它。
gameRecord[1]="Top_Level".
Since you identified it, the script expects something to be in it.
Nothing says you have to use it.
>我在javascript中有一个多维数组，如下所示：
> I have a multi-dimensional array in javascript, as follows:
gameRecord = new Array（500）;
gameRecord [1] [1] =" FA Cup： 2005年2月19日" ;;
gameRecord [1] [2] [1] =" Arsenal v Sheff Utd，12：30" ;;
gameRecord [1] [2] [2] =" Bolton v Fulham，15：00"
gameRecord [1] [2] [3] =" Charlton v Leicester，15：00"
gameRecord [1] [2] [4] =" ; Everton v Man Utd，17：30"
gameRecord [1] [2] [5] =" Southampton v Brentford，15：00"
还有更多的记录对它，但上面只是一个提取...
它被写入自己的javascript文件（称为football.js），我打电话使用
< script语言= QUOT; JavaScript的" type =" text / javascript"
src =" football.js">< / script>
我知道它正在阅读它，因为对于测试，我在文件之前一个简单的警报（这里）;然后我大喊大叫。
为什么即使在我从数组中读取之前，我在Mozilla的JavaScript控制台中收到了以下错误消息......
<错误：gameRecord [1]没有属性
我收集我正在错误地初始化数组 - 有人会关心
指引我朝正确的方向发展吗？
gameRecord=new Array(500);
gameRecord[1][1]="FA Cup : 19 February 2005";
gameRecord[1][2][1]="Arsenal v Sheff Utd, 12:30";
gameRecord[1][2][2]="Bolton v Fulham, 15:00";
gameRecord[1][2][3]="Charlton v Leicester, 15:00";
gameRecord[1][2][4]="Everton v Man Utd, 17:30";
gameRecord[1][2][5]="Southampton v Brentford, 15:00";
There are alot more records to it, but the above is just an extract...
It is written into its own javascript file (called football.js) which I
call using
<script language="JavaScript" type="text/javascript"
src="football.js"></script>
I know its reading it because for a test, I preceeded the file with a
simple alert("here"); and this shouted back at me.
How come though that even before I read from the array I get the
following error message in the JavaScript Console in Mozilla...
Error: gameRecord[1] has no properties
I gather I am initializing the array incorrectly - would someone care to
direct me in the right direction?
gameRecord = [
[" FA Cup：2005年2月19日"，[
" Arsenal v Sheff Utd，12： 30"，
" Bolton v Fulham，15：00"
" Charlton v Leicester，15：00"
" ; Everton v Man Utd，17：30，
" Southampton v Brentford，15：00"]]];
在这种形式下，它更容易阅读，更容易修改，并且它是正确的。学习对数组和对象使用文字符号。
此外，数组下标应该从0开始，而不是1.
http://www.JSON.org
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