61 lines
1.7 KiB
JavaScript
61 lines
1.7 KiB
JavaScript
function foo(str:string, i:number):string {
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return str;
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}
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var bar: (str:number, i:number)=> string = foo;
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var qux = function(str:string, i:number):number { return foo(str,i); }
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var obj: {str:string; i:number; j:boolean} = {str: "...", i: "...", k: false};
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var arr: Array<number> = [1,2,"..."];
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// array sugar
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var array: number[] = [1,2,"..."];
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var matrix: number[][] = [[1,2],[3,4]];
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var matrix_parens: (number[])[] = matrix;
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var nullable_array: ?number[] = null;
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var nullable_array_parens: ?(number[]) = nullable_array;
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var array_of_nullable: (?number)[] = [null, 3];
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var array_of_tuple: [number, string][] = [[0, "foo"], [1, "bar"]];
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var array_of_tuple_parens: ([number, string])[] = array_of_tuple;
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type ObjType = { 'bar-foo': string; 'foo-bar': number; };
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var test_obj: ObjType = { 'bar-foo': '23' };
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// param type annos are strict UBs like var type annos
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function param_anno(n:number):void {
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n = "hey"; // error
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}
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// another error on param UB, more typical of www (mis)use-cases
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// this one cribbed from API.atlas.js
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function param_anno2(
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batchRequests: Array<{method: string; path: string; params: ?Object}>,
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): void {
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// error below, since we're assigning elements to batchRequests
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// which lack a path property.
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// just assign result to new var instead of reassigning to param.
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// Transform the requests to the format the Graph API expects.
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batchRequests = batchRequests.map((request) => {
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return {
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method: request.method,
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params: request.params,
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relative_url: request.path,
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};
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});
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// ...
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}
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var toz : null = 3;
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var zer : null = null;
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function foobar(n : ?number) : number | null | void { return n; }
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function barfoo(n : number | null | void) : ?number { return n; }
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