| 1 | export type Index<T> = {[key: string]: T}
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| 2 | export type Option<T> = T | undefined;
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| 3 |
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| 4 | export function map<A, B>(a: Option<A>, f: (a: A) => B): Option<B> {
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| 5 | return a ? f(a) : undefined;
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| 6 | }
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| 7 |
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| 8 | export function flatMap<A, B>(a: Option<A>, f: (a: A) => Option<B>): Option<B> {
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| 9 | return a ? f(a) : undefined;
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| 10 | }
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| 11 |
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| 12 | export function getOrElse<T>(t: Option<T>, _default: T): T {
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| 13 | return t ? t : _default;
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| 14 | }
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| 15 |
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| 16 | export function obfuscateString(rawString?: string): string | undefined {
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| 17 | if (!rawString) return undefined;
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| 18 | const stringLength = rawString.length;
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| 19 | if (stringLength === 0) return '';
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| 20 | else {
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| 21 | const clearSize = Math.floor(0.3 * stringLength);
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| 22 | const clear = rawString.substring(0, clearSize);
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| 23 | const obfuscated = 'X'.repeat(stringLength - clearSize);
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| 24 | return clear + obfuscated;
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| 25 | }
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| 26 | } |
| \ | No newline at end of file |