Why JavaScript? It's arguably the de facto standard for client-side scripting on the web, winning out This section shows the output of two client-side scripting languages: JavaScript and PerlScript. You may have encountered these numbers before when setting colors in CSS.īefore you start to get worried about your brain melting, stop right there! For a start, we are just going to stick to decimal numbers throughout this course you'll rarely come across a need to start thinking about other types, if ever.(Sorry, it doesn't appear that you have PerlScript installed.) Hexadecimal - Base 16, uses 0–9 and then a–f in each column.Octal - Base 8, uses 0–7 in each column.Binary - The lowest level language of computers 0s and 1s.We even have different types of number systems! Decimal is base 10 (meaning it uses 0–9 in each column), but we also have things like: Doubles are a specific type of floating point number that have greater precision than standard floating point numbers (meaning that they are accurate to a greater number of decimal places).Floating point numbers (floats) have decimal points and decimal places, for example 12.5, and 56.7786543.They can either be positive or negative, e.g. Integers are floating-point numbers without a fraction.We use different terms to describe different types of decimal numbers, for example: In programming, even the humble decimal number system that we all know so well is more complicated than you might think. Solve common problems in your JavaScript code.Express Tutorial Part 7: Deploying to production.Express Tutorial Part 6: Working with forms.Express Tutorial Part 5: Displaying library data.Express Tutorial Part 4: Routes and controllers.Express Tutorial Part 3: Using a Database (with Mongoose).Express Tutorial Part 2: Creating a skeleton website.Express Tutorial: The Local Library website. ![]() Setting up a Node development environment.Express web framework (Node.js/JavaScript).Express Web Framework (node.js/JavaScript).Django Tutorial Part 11: Deploying Django to production.Django Tutorial Part 10: Testing a Django web application.Django Tutorial Part 9: Working with forms.Django Tutorial Part 8: User authentication and permissions.Django Tutorial Part 7: Sessions framework.Django Tutorial Part 6: Generic list and detail views.Django Tutorial Part 5: Creating our home page.Django Tutorial Part 4: Django admin site.Django Tutorial Part 2: Creating a skeleton website.Django Tutorial: The Local Library website.Setting up a Django development environment.Server-side website programming first steps.Setting up your own test automation environment.Building Angular applications and further resources.Advanced Svelte: Reactivity, lifecycle, accessibility.Dynamic behavior in Svelte: working with variables and props.Vue conditional rendering: editing existing todos.Adding a new todo form: Vue events, methods, and models.Ember Interactivity: Footer functionality, conditional rendering.Ember interactivity: Events, classes and state.Ember app structure and componentization.React interactivity: Editing, filtering, conditional rendering.Understanding client-side web development tools.MathML - Writing mathematics with MathML.Performance - Making websites fast and responsive.Assessment: Accessibility troubleshooting.CSS and JavaScript accessibility best practices.Accessibility - Make the web usable by everyone.CSS property compatibility table for form controls.Adding features to our bouncing balls demo.Making decisions in your code - conditionals.Basic math in JavaScript - numbers and operators.Storing the information you need - Variables.What went wrong? Troubleshooting JavaScript.JavaScript - Dynamic client-side scripting.Typesetting a community school homepage.HTML table advanced features and accessibility. ![]()
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