如何在Windows8商店应用程序中的Javascript / HTML5中设置全局变量 [英] How to set global variables in Javascript/HTML5 in Windows8 store app
问题描述
我想在.js文件中使用全局变量。
例如,
I want to use global variable in .js files. For example,
当我读取a.js + a.html中的文件内容并保存到某个变量'fileContent'时
when I read a file content in " a.js + a.html " and saved into a certain variable 'fileContent'
然后我也想在b.js + b.html中使用'fileContent'。
then I also want to use that 'fileContent' in " b.js + b.html ".
(当我更改b.js + b.html中的'fileContent'时,这会影响a.js + a中的'fileContent'。 html)
(also, when I change the 'fileContent' in "b.js + b.html", that should affect 'fileContent' in "a.js + a.html")
我该怎么办?
谢谢。
推荐答案
鉴于Windows 8应用程序的体系结构是单页面模型,您不在其中导航浏览器,而只是加载HTML片段并将其插入当前文档,这很容易。但是,我建议使用一些打字,而不仅仅是裸全局变量。
Given that the architecture for Windows 8 Applications is the single page model, where you don't navigate the browser, but merely load a fragment of HTML and insert it into the current document, this is very easy. I would, however, recommend using some typing, rather than just a "naked" global variable.
文件A(globals.js):
File A (globals.js):
WinJS.Namespace.define("MyGlobals", {
variableA: null,
});
在WinJS包含后,将其包含在default.html的顶部。
Include this at the top of default.html after the WinJS includes.
文件B(b.js):
// your other code
...
MyGlobals.variableA = getValueFromSomewhere();
文件C(b.html或c.js):
File C (b.html, or c.js):
// your other code
...
printSomethingAwesomeFromData(MyGlobals.variableA);
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