mikemoi
41 lines
1.0 KiB
TypeScript
41 lines
1.0 KiB
TypeScript
const reverseItems = new Set([1, 3, 5, 6]);
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const perseveranceItems = [2, 4, 7, 8];
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const consistencyItems = [1, 3, 5, 6];
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function scoreItem(answers: string[], item: number) {
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const raw = Number(answers[item - 1] || 1);
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return reverseItems.has(item) ? 6 - raw : raw;
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}
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function average(values: number[]) {
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return values.reduce((sum, value) => sum + value, 0) / values.length;
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}
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export function calculateGritResults(answers: string[]) {
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const itemScores = Array.from({ length: 8 }, (_, index) =>
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scoreItem(answers, index + 1),
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);
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const totalAverage = average(itemScores);
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const perseveranceAverage = average(
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perseveranceItems.map((item) => scoreItem(answers, item)),
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);
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const consistencyAverage = average(
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consistencyItems.map((item) => scoreItem(answers, item)),
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);
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let level: 'low' | 'moderate' | 'high' = 'moderate';
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if (totalAverage < 3) {
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level = 'low';
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} else if (totalAverage >= 4) {
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level = 'high';
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}
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return {
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itemScores,
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totalAverage,
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perseveranceAverage,
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consistencyAverage,
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level,
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};
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}
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