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Google Apps Scripts and Web Development Tutorials and Resources by Laurence Svekis
Debugging and troubleshooting are crucial for JavaScript developers to identify and fix code issues. This blog post covers techniques using console.log(), browser developer tools, breakpoints, the debugger statement, and try…catch blocks. Understanding these methods helps improve code quality and user experience by resolving common syntax, runtime, and logical errors.
Destructuring assignment is a powerful feature in JavaScript introduced with ES6 (ECMAScript 2015). It allows you to unpack values from arrays or properties from objects into distinct variables in a more concise and readable manner. This guide will help you understand how to effectively use destructuring assignment in your JavaScript code, complete with examples and … Read more
ECMAScript 6 (ES6), also known as ECMAScript 2015, introduced a host of new features that significantly improved JavaScript. These features made the language more powerful, expressive, and easier to work with. In this blog post, we’ll explore some of the most important ES6+ features, complete with examples to illustrate their usage. Let and Const ES6 … Read more
The Document Object Model (DOM) is a programming interface for web documents. It represents the page so that programs can change the document structure, style, and content. JavaScript is widely used to interact with the DOM, allowing developers to create dynamic and interactive web pages. In this blog post, we’ll explore the fundamentals of DOM … Read more
Exploring JavaScript ES6+ Features: A Comprehensive Guide ECMAScript 6 (ES6), also known as ECMAScript 2015, introduced a host of new features that significantly improved JavaScript. These features made the language more powerful, expressive, and easier to work with. In this blog post, we’ll explore some of the most important ES6+ features, complete with examples to … Read more
Arrays are a fundamental part of JavaScript, providing a way to store and manipulate collections of data. JavaScript offers a wide range of methods to work with arrays efficiently. In this blog post, we’ll explore some of the most commonly used array methods and operations, complete with examples to illustrate their usage. Common Array Methods … Read more
JavaScript is an essential language for web development, and one of its most powerful features is the ability to manipulate the Document Object Model (DOM). This allows developers to create dynamic and interactive web pages. In this blog post, we will explore how to select and modify DOM elements using JavaScript. Selecting DOM Elements Selecting … Read more
Question 11 What will the following code output? console.log(1 + “2” + “2”); a) 5b) “32”c) “122”d) NaN Answer: c) “122” Explanation: When adding a number to a string, JavaScript performs string concatenation. 1 + “2” results in “12”, and then “12” + “2” results in “122”. Question 12 What is the output of the … Read more
Question 1 What is the output of the following code? console.log(typeof NaN); a) “number”b) “string”c) “undefined”d) “NaN” Answer: a) “number” Explanation: In JavaScript, NaN (Not-a-Number) is actually of the type number. This is a special value that results from operations that don’t yield a valid number. Question 2 What does the following code snippet do? … Read more
Landing a job as a JavaScript developer can be a rewarding career move, but the interview process can be challenging. To help you prepare and stand out from the competition, here are ten essential tips for acing your JavaScript developer interview. 1. Master the Fundamentals Before diving into complex frameworks and libraries, ensure you have … Read more