[英]Is it possible to have a union type constructor object in typescript?
I have the following code used for run time type checking by vue.js我有以下代码用于 vue.js 的运行时类型检查
props: {
foo: Object | Array
}
Here Object and Array are runtime objects, it is used to do type checking at runtime by vue.js.这里 Object 和 Array 是运行时对象,vue.js 用来在运行时做类型检查。 This doesn't actually work because |这实际上不起作用,因为 | is interpreted as an arithmetic operator since Object and Array are values rather than types.被解释为算术运算符,因为 Object 和 Array 是值而不是类型。
Is there someway of constructing an object that can represent the object or array type?有没有办法构造一个可以表示对象或数组类型的对象?
You can do你可以做
props: {
foo: {
type: [Object, Array]
}
}
or more generally或更一般地说
props: {
foo: {
type: [Object as () => YourTypeScriptType, Array, String]
}
}
It will be like它会像
type FooProps = YourTypeScriptType | Array | string
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