我想创建一个Map
,其中每个成员都包含一个字符串数组。但是我如何初始化并输入它(在单个语句中)?
我试过这个:
private _gridOptions:Map<string, Array<string>> = {"1": ["test"]};
我得到了:
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[]>'.
答案 0 :(得分:53)
每Mozilla's Map documentation,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"]]
]);
答案 1 :(得分:1)
variableName: Map<string, string[]> = new Map();
将元素推入 Map:
variableName.set("a", ["b", "c"]);
从地图中获取/检索元素:
variableName.get(key);// "a" in above case