g2601_2700.s2665_counter_ii.solution.ts Maven / Gradle / Ivy

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Kotlin-based LeetCode algorithm problem solutions, regularly updated

There is a newer version: 1.30

// #Easy #2023_09_09_Time_54_ms_(94.09%)_Space_45.6_MB_(18.33%)

type ReturnObj = {
    increment: () => number
    decrement: () => number
    reset: () => number
}

function createCounter(init: number): ReturnObj {
    let n = init
    return {
        increment: () => {
            n = n + 1
            return n
        },
        decrement: () => {
            n = n - 1
            return n
        },
        reset: () => {
            n = init
            return n
        },
    }
}

/*
 * const counter = createCounter(5)
 * counter.increment(); // 6
 * counter.reset(); // 5
 * counter.decrement(); // 4
 */

export { createCounter }