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Google Apps Scripts and Web Development Tutorials and Resources by Laurence Svekis
Introduction In web development, we often encounter scenarios where a function needs to be executed repeatedly in response to events like scrolling, resizing, or mouse movements. However, triggering the function too frequently can lead to performance issues, such as slowing down the browser. This is where throttling comes in handy. What is Throttling? Throttling is … Read more
10 coding learning exercises focused on Functional Programming in JavaScript, covering Pure Functions and Immutability, Map, Filter, Reduce, and other Array Methods, Declarative vs. Imperative Programming, Lazy Evaluation and Infinite Sequences, and Monads, Functors, and Other FP Concepts Exercise 1: Creating Pure Functions Objective: Understand the concept of pure functions in JavaScript. Task: Write a … Read more
Here are 50 multiple-choice questions related to Functional Programming in JavaScript, covering Pure Functions and Immutability, Map, Filter, Reduce, and other Array Methods, Declarative vs. Imperative Programming, Lazy Evaluation and Infinite Sequences, and Monads, Functors, and Other FP Concepts. Each question includes a detailed explanation of the correct answer. Pure Functions and Immutability Map, Filter, … Read more
In JavaScript, certain events like window resizing or input changes can trigger functions multiple times in rapid succession. This can lead to performance issues, especially when these functions perform resource-intensive tasks. The debounce technique is a common solution to this problem, ensuring that a function is only executed after a specified period of inactivity. In … Read more
In JavaScript, the Array.prototype.map function is a powerful method that allows you to transform the elements of an array by applying a callback function to each element. It returns a new array containing the results of calling the callback function on each element. But what if you wanted to implement your own version of map? … Read more
In JavaScript, Promises are a powerful way to handle asynchronous operations. They provide a mechanism to execute code after an asynchronous task completes, with support for chaining multiple tasks using the .then method. In this blog post, we’ll explore how to implement a basic version of a Promise from scratch, including support for .then, .catch, … Read more
When working with JavaScript objects, you may encounter situations where you need to create an exact copy of an object. However, simply copying an object with assignment (=) or even using methods like Object.assign() creates a shallow copy. This means that nested objects or arrays within the original object will still reference the same memory … Read more
When working with web applications, it’s crucial to manage user interactions effectively, especially when dealing with asynchronous operations like AJAX requests. One common issue is handling double clicks on buttons, which can lead to multiple, unnecessary requests. In this blog post, we’ll walk through a solution to prevent double clicks on a button that triggers … Read more
100 Advanced JavaScript Multiple Choice Questions with Answers and Explanations JavaScript is a versatile and powerful language used widely for web development. To truly master JavaScript, especially its advanced concepts, it’s essential to understand not just the syntax but the underlying principles and behaviors of the language. Below are 100 advanced multiple-choice questions designed to … Read more
Preparing for a JavaScript coding interview can be daunting, but with the right strategies and tips, you can set yourself up for success. Here are 100 tips to help you ace your next JavaScript interview: Before the Interview JavaScript Fundamentals Advanced JavaScript Concepts Performance and Optimization Testing and Debugging Front-End Frameworks and Libraries Node.js and … Read more