Function `flattenArr()` flattens a 2D array by combining each sub array into 1D array by using JavaScript reduce. function flattenArr(arr) { return arr.reduce((result, array) => …

Mar 5, 2025 · Practice with solution of exercises on JavaScript functions; exercise on reverse a number, palindrome, generates all combinations of a string and more from w3resource.

Mar 7, 2025 · It includes 1041 main exercises, each accompanied by solutions, detailed explanations, and three/four related problems. JavaScript is a lightweight, cross-platform, …

100 interactive JavaScript exercises that will help beginner and advanced developers to better understand the language.

We have gathered a variety of React exercises from most of the chapters in our JavaScript Tutorial. The exercises are a mix of "multiple choice" and "fill in the blanks" questions. The …

Mar 5, 2025 · Write a JavaScript program to apply a function against an accumulator and each element in the array (from left to right), returning an array of successively reduced values. …

Jan 13, 2021 · function solution(input){ arr=input.split(" "); for(var i=0;i<arr.length;i++) { console.log(arr[i]); } return arr; } When you call a function, the value will be its return value. If …

By the end of these exercises, you will have a foundational understanding of JavaScript basics, including variables, functions, loops, and basic DOM manipulation. Start with the first exercise …

Apr 8, 2025 · A JavaScript function is a block of code designed to perform a specific task. Functions are only executed when they are called (or "invoked"). JavaScript provides different …

Aug 12, 2016 · It allows you to pass expressions into a Parser that returns a function object that can then evaluate inputs. It supports trig functions (sin, cos, ect...) and other handy built in …