LeetCode

🔗LC2703 🟢 Easy 🧩 Pattern – Function Transformations 📅 Day 9/30 Days of JavaScript Write a function argumentsLength that returns the count of arguments passed to it. Example Solution

🔗LC2629 🟢 Easy 🧩 Pattern – Function Transformations 📅 Day 8/30 Days of JavaScript Given an array of functions [f1, f2, f3, …, fn], return a new function fn that is the function composition of the array of functions. The function composition of [f(x), g(x), h(x)] is fn(x) = f(g(h(x))). The function composition of an empty list of functions is the identity function f(x) = x. You… Read More »Function Composition – 2629

🔗LC2626 🟢 Easy 🧩 Pattern – Array Transformations 📅 Day 7/30 Days of JavaScript Given an integer array nums, a reducer function fn, and an initial value init, return the final result obtained by executing the fn function on each element of the array, sequentially, passing in the return value… Read More »Array Reduce Transformation – 2626

🔗LC2634 🟢 Easy 🧩 Pattern – Array Transformations 📅 Day 6/30 Days of JavaScript Given an integer array arr and a filtering function fn, return a filtered array filteredArr. The fn function takes one or two arguments: filteredArr should only contain the elements from the arr for which the expression fn(arr[i],… Read More »Filter Elements from Array – 2634

🔗LC2635 🟢 Easy 🧩 Pattern – Array Transformations 📅 Day 5/30 Days of JavaScript Given an integer array arr and a mapping function fn, return a new array with a transformation applied to each element. The returned array should be created such that returnedArray[i] = fn(arr[i], i). Please solve it without the built-in Array.map method.… Read More »Apply Transform Over Each Element in Array – 2635

🔗LC2665 🟢 Easy 🧩 Pattern – Closures 📅 Day 4/30 Days of JavaScript Write a function createCounter. It should accept an initial integer init. It should return an object with three functions. The three functions are: Example Solution We return an object with the three required functions as properties, we implement a… Read More »Counter II – 2665