mirror of
https://github.com/denoland/deno.git
synced 2024-12-23 07:44:48 -05:00
18 lines
485 B
TypeScript
18 lines
485 B
TypeScript
// Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.
|
|
|
|
export function getDOMStringList(arr: string[]): DOMStringList {
|
|
Object.defineProperties(arr, {
|
|
contains: {
|
|
value(searchElement: string): boolean {
|
|
return arr.includes(searchElement);
|
|
},
|
|
enumerable: true,
|
|
},
|
|
item: {
|
|
value(idx: number): string | null {
|
|
return idx in arr ? arr[idx] : null;
|
|
},
|
|
},
|
|
});
|
|
return arr as string[] & DOMStringList;
|
|
}
|