如何在Javascript中创建常量文件? [英] How to create a file of constants in Javascript?
问题描述
我正在寻找的是这样的:
Constants.js:
var Phones =
{
诺基亚:1,
三星:2
}
然后,在另一个JavaScript文件JS2.js访问这些值:
JS2.js:
alert(Phones.Nokia);
然后,在使用它们的aspx文件,引用它们,如:
< asp:ScriptReference Path =../ js / JS2.js/>
< asp:ScriptReference Path =../ js / Constants.js/>
这样的架构可能吗?我们可以使用哪些数据类型?我只是列举了这个枚举,因为这是我现在使用的,但是它们必须在使用的文件中被声明。
p>你做的正确。
确保常数首先声明。
JavaScript以自顶向下的顺序解析alls脚本和脚本文件链接。
Is there a way to create a file of constants in JavaScript, which I can reference and then use?
What I am looking for is something like this:
Constants.js:
var Phones =
{
Nokia: 1,
Samsung: 2
}
Then, in another JavaScript file JS2.js access those values:
JS2.js:
alert(Phones.Nokia);
And then, in an aspx file that uses them, reference both of them, like:
<asp:ScriptReference Path="../js/JS2.js" />
<asp:ScriptReference Path="../js/Constants.js" />
Is such an architecture possible? What datatypes can we use? I only exemplified enums because this is what i use right now, but they must be declared in the same file as they are used.
you're doing it right.
make sure the constants are declared first.
JavaScript parses alls scripts and script file links in top down order.
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