Question_2666.md

LeetCode Records - Question 2666 Allow One Function Call

Attempt 1:

var once = function(fn) {
    let isCalled = false;
    
    return function(...args){
        if (isCalled) {
            return undefined;
        }

        isCalled = true;
        return fn(...args);
    }
};

• Runtime: 43 ms (Beats: 94.57%)
• Memory: 48.90 MB (Beats: 42.54%)