20 lines
470 B
JavaScript
20 lines
470 B
JavaScript
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import ascending from "./ascending.js";
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import maxIndex from "./maxIndex.js";
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export default function greatestIndex(values, compare = ascending) {
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if (compare.length === 1) return maxIndex(values, compare);
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let maxValue;
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let max = -1;
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let index = -1;
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for (const value of values) {
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++index;
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if (max < 0
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? compare(value, value) === 0
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: compare(value, maxValue) > 0) {
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maxValue = value;
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max = index;
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}
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}
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return max;
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}
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