如何从 TypeScript 中的父模块访问变量？
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How to access variable from parent module in TypeScript?
提问by Wouter de Kort
If I have this TypeScript code:
如果我有这个 TypeScript 代码：
module Foo
{
var x : string ="value";
module Bar
{
export var x = x;
}
}
It compiles to the following JavaScript:
它编译为以下 JavaScript：
var Foo;
(function (Foo) {
var x = "value";
var Bar;
(function (Bar) {
Bar.x = Bar.x;
})(Bar || (Bar = {}));
})(Foo || (Foo = {}));
The problem is the line that says Bar.x = Bar.x. How can I set Bar.x to Foo.x? Is it required to exportFoo.xso I can say Bar.x = Foo.x?
问题是说Bar.x = Bar.x. 如何将 Bar.x 设置为 Foo.x？需要exportFoo.x这样我才能说Bar.x = Foo.x吗？
回答by Fenton
It is definitely possible if you remove the ambiguity in the naming:
如果您消除命名中的歧义，绝对有可能：
module Foo
{
var a : string = "My Value";
export module Bar
{
export var x = a;
}
}
alert(Foo.Bar.x);
