Created
December 29, 2022 10:14
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Typescript-refactored famous Polish Railways PKP isPies implementation
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| // jQuery | |
| declare let $: any; | |
| enum DogOptions { | |
| DOG = 17, | |
| ASSISTANT_DOG = 18, | |
| GUIDE_DOG = 19, | |
| }; | |
| /** | |
| * Type guard checking if given {@link option} is one of {@link DogOptions} | |
| */ | |
| function optionIsDogOption(option: number): option is DogOptions { | |
| const allDogOptions = Object.values(DogOptions).filter(it => typeof it === "number") as number[]; | |
| return allDogOptions.includes(option) | |
| } | |
| /** | |
| * PKP-backwards-compatible function to check if dog is selected | |
| */ | |
| function czyWybranoPsa() { | |
| return $(".bilet-dodatkowy") | |
| .map((_: any, elem: any) => $(elem).val() as number) | |
| .any(optionIsDogOption); | |
| } |
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