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19 lines
599 B
TypeScript
19 lines
599 B
TypeScript
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export function getMajorityValue(arr: string[]): string {
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const count: { [k: string]: number } = {};
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arr.forEach((v) => (count[v] = (count[v] || 0) + 1));
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// Object.values inline polyfill
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const max = Math.max(...Object.keys(count).map((k) => count[k]));
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return sample(Object.keys(count).filter((k) => count[k] == max));
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}
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export function sample<T>(arr: T[]): T {
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return arr[Math.floor(arr.length * Math.random())];
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}
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export function sumOfKeys(obj:{[key:string]:number} | undefined | null){
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if(!obj) return 0
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return Object.values(obj)?.reduce((a,b)=>a+b,0) ||0
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}
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