typescript 初始化包含数组的 Map
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时间:2020-09-09 07:32:54 来源:igfitidea点击:
Initialize a Map containing arrays
提问by BBaysinger
I want to make a Map
where each member contains an array of strings. But how do I initialize and type it (in a single statement)?
我想制作一个Map
每个成员都包含一个字符串数组的地方。但是我如何初始化并输入它(在单个语句中)?
I've tried this:
我试过这个:
private _gridOptions:Map<string, Array<string>> = {"1": ["test"]};
and I get:
我得到:
Module build failed: Error: /Users/*****/Work/dashboard/src/app/core/pg.service.ts (8,5): Type '{ "1": string[]; }' is not assignable to type 'Map<string, string[]>'.
回答by GPicazo
Per Mozilla's Map documentation, you can initialize as follows:
根据Mozilla 的 Map 文档,您可以按如下方式进行初始化:
private _gridOptions:Map<string, Array<string>> =
new Map([
["1", ["test"]],
["2", ["test2"]]
]);