27 lines
624 B
TypeScript
27 lines
624 B
TypeScript
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// eslint-disable-next-line @typescript-eslint/no-namespace
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export namespace Binary {
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export function search<T>(
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array: readonly T[],
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id: string,
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compare: (item: T) => string,
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): { found: boolean; index: number } {
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let left = 0
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let right = array.length - 1
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while (left <= right) {
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const mid = Math.floor((left + right) / 2)
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const midId = compare(array[mid])
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if (midId === id) {
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return { found: true, index: mid }
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} else if (midId < id) {
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left = mid + 1
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} else {
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right = mid - 1
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}
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}
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return { found: false, index: left }
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}
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}
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