JavaScript array coding questions JavaScript array coding interview questions are technical questions asked to gauge candidates’ ability to work with arrays along with their familiarity with fundamental data structures. 1. Write a function that returns the sum of all numbers in an array. ...
Logical operators in javascript, unlike operators in other programming languages, do not return true or false. They always return one of the operands.OR ( | | ) operator - If the first value is truthy, then the first value is returned. Otherwise, always the second value gets returned.AND ...
Generate Coding Logic HR Interview Questions Computer Glossary Who is Who propertyIsEnum HTML Event Handlers You shouldnt use the HTML even handlers as a variable name in JavaScript. Here, we have listed some of the event handlers. onclickondblclickonmouseoveronmouseout ...
“We teach our learners block-based coding first because it’s first teaching the logical and problem-solving skills on how code should work,” says Kim. “And that seems to facilitate it, at least for our young learners. At Code Ninjas, the aim is to make coding as “fun as possible...
Errors can be a syntax, runtime or logical errors. An error occurred during the execution of the program is called a runtime error or an exception.In JavaScript, errors can occur due to programming mistakes, incorrect user input, etc. Errors can disrupt code execution and lead to bad user...
In JavaScript, the term logical operator refers to operations whose operands only have the Boolean values 0 or 1. The JavaScript logical operators are && (logical AND), || (logical OR), and ! (logical NOT). var variable_1; var variable_2; variable _1 = (6 > 5); // sets variable...
If you’d like to learn coding JavaScript, check out our guide on learning to code.If you have any more questions or suggestions, feel free to leave us a comment.What Is JavaScript FAQWhat Is JavaScript and Why Is It Used? JavaScript is a programming language used to create dynamic and ...
), logical assignment operators (||= and &&=), top-level await, and array grouping methods like groupBy(). How does JavaScript work on a web page? When a user enters a URL or clicks on a link, the server sends the HTML, CSS, and JavaScript code needed to render the content. Then...
sudheerj/reactjs-interview-questions - List of top 500 ReactJS Interview Questions & Answers...Coding exercise questions are coming soon!! wekan/wekan - The Open Source kanban (built with Meteor). Keep variable/table/field names camelCase. For translations, only add Pull Request changes to ...
Frequently Asked Questions What is a null check? In JavaScript, null represents an intentional absence of a value, indicating that a variable has been declared with a null value on purpose. On the other hand, undefined represents the absence of any object value that is unintentional. A null ...